US6823951B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcuate-shaped inserts for drill bits
Assignee: Smith International Inc
•
Filing: 2002-07-03
•
Granted: 2004-11-30
•
Expires: 2022-07-03
Abstract
Abstract Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360 degree or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone, the arcuate inserts fragment in a controlled and predicted manner into shorter arcuate lengths. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance.
Inventors
- 👤 Zhou Yong
- 👤 Jim Minikus
- 👤 Amardeep Singh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:45
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/08; E21B10/16; E21B10/46; E21B10/50
Claims Analysis
Total Claims: 102
Claim 1
Independent Claim
64 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained within said groove, said insert including at least one stress relief discontinuity.
Claim 2
Dependent Claim
64 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained within said groove, said insert including at least one stress relief discontinuity.
Claim 3
Dependent Claim
105 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove; wherein said groove extends completely around said cone axis, and wherein said insert includes a ring-shaped body having a radially innermost side surface, a radially outermost side surface, a cutting surface extending between said side surfaces, and a plurality of stress relief discontinuities formed about said body.
Claim 4
Dependent Claim
105 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove; wherein said groove extends completely around said cone axis, and wherein said insert includes a ring-shaped body having a radially innermost side surface, a radially outermost side surface, a cutting surface extending between said side surfaces, and a plurality of stress relief discontinuities formed about said body.
Claim 5
Dependent Claim
21 words
The drill bit of claim 2 wherein said insert is retained in a groove that is formed in a nonplanar surface.
Claim 6
Dependent Claim
44 words
The drill bit of claim 2 wherein said bit includes a backface, a heel surface adjacent to said backface, and a generally conical surface adjacent to said heel surface, wherein said insert is retained in a groove that is formed in said conical surface.
Claim 7
Dependent Claim
79 words
The drill bit of claim 1 further comprising: a first circumferential groove extending completely around said cone axis; a second circumferential groove extending completely around said cone axis; a first ring-shaped insert retained by interference fit within said first groove and having a first cutting surface and a plurality of stress relief discontinuities; and a second ring-shaped insert retained by interference fit within said second groove and having a second cutting surface and a plurality of stress relief discontinuities.
Claim 8
Dependent Claim
53 words
The drill bit of claim 5 wherein said bit includes a backface, a heel surface adjacent to said backface, and a generally conical surface adjacent to said heel surface, wherein said first insert is retained in said conical surface and said second insert is retained in a surface other than said conical surface.
Claim 9
Dependent Claim
28 words
The drill bit of claim 6 wherein said cutting surface of said first ring-shaped insert is different as compared to said cutting surface of said second ring-shaped insert.
Claim 10
Dependent Claim
30 words
The drill bit of claim 5 wherein said first and second ring-shaped inserts have inner and outer side surfaces that, in cross section, are substantially parallel to said cone axis.
Claim 11
Dependent Claim
19 words
The drill bit of claim 1 wherein said groove is formed in a nonplanar surface of said cone cutter.
Claim 12
Dependent Claim
89 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove; and a plurality of arcuate shaped inserts retained in said groove by interference fit in an end to end relationship, wherein said groove is substantially entirely filled by said arcuate inserts.
Claim 13
Dependent Claim
89 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove; and a plurality of arcuate shaped inserts retained in said groove by interference fit in an end to end relationship, wherein said groove is substantially entirely filled by said arcuate inserts.
Claim 14
Dependent Claim
16 words
The drill bit of claim 10 wherein said groove extends only partially around said cone axis.
Claim 15
Dependent Claim
36 words
The drill bit of claim 11 further comprising a plurality of nonintersecting grooves formed in said cone cutter at substantially the same axial position, each of said grooves including at lest one arcuate insert retained therein.
Claim 16
Dependent Claim
55 words
The drill bit of claim 10 wherein said bit includes a backface, a heel surface adjacent to said backface, and a generally conical surface adjacent to said heel surface, wherein said groove extends completely around said cone axis and is formed in said cone cutter at a location between said backface and said heel surface.
Claim 17
Dependent Claim
22 words
The drill bit of claim 13 further comprising a circumferential row of cylindrical-based inserts disposed in sockets formed in said heel surface.
Claim 18
Dependent Claim
36 words
The drill bit of claim 13 wherein said inserts include cutting surfaces having grooves oriented in a plurality of directions, said grooves forming first cutting edges having negative backrake, and second cutting edges having positive backrake.
Claim 19
Dependent Claim
14 words
The drill bit of claim 10 wherein said ends of said inserts are nonplaner.
Claim 20
Dependent Claim
34 words
The drill bit of claim 10 wherein said arcuate-shaped inserts include a first insert having a cutting surface of a first material and a second insert having a cutting surface of a second material.
Claim 21
Dependent Claim
38 words
The drill bit of claim 10 wherein at least one arcuate-shaped insert includes a cutting surface having first and second regions, wherein such first region is made of a harder material than the material of said second region.
Claim 22
Dependent Claim
36 words
The drill bit of claim 10 wherein said arcuate-shaped inserts include a bottom surface and a cutting surface, and wherein, in cross section, said inserts are wider at said cutting surface than at said bottom surface.
Claim 23
Dependent Claim
23 words
The drill bit of claim 10 further comprising means on said arcuate-shaped base portion for preventing rotation of said insert within said groove.
Claim 24
Dependent Claim
45 words
The drill bit of claim 1 wherein said bit includes a backface, a heel surface adjacent to said backface, and a generally conical surface adjacent to said heel surface, wherein said groove is formed at the intersection of said heel surface and said conical surface.
Claim 25
Dependent Claim
46 words
The drill bit of claim 1 wherein said bit includes only a single rolling cone, said rolling cone having a generally spherical surface for retaining cutter elements, said groove being formed in said spherical surface and retaining a plurality or arcuate shaped inserts by interference fit.
Claim 26
Dependent Claim
32 words
The drill bit of claim 1 wherein said groove retains a plurality arcuate shaped gage inserts in end-to-end relationship that have cutting surfaces that extend to cut the corner of the borehole.
Claim 27
Dependent Claim
69 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove, wherein said arcuate-shaped insert includes at least one stress relief discontinuity.
Claim 28
Dependent Claim
69 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body and being adapted to rotate about a cone axis; a groove formed in said cone cutter; at least one arcuate-shaped insert with an arcuate-shaped base portion retained by interference fit within said groove, wherein said arcuate-shaped insert includes at least one stress relief discontinuity.
Claim 29
Dependent Claim
13 words
The drill bit of claim 24 wherein said arcuate-shaped insert is spiral shaped.
Claim 30
Dependent Claim
102 words
A drill bit for cutting earthen formation, comprising: a rolling cone cutter having a central axis and a body adapted to be mounted on the drill bit for rotation about said axis, said cutter body including a backface, a heel surface, and a generally conical surface adjacent to said heel surface; a circumferential channel in said cutter body, said channel extending completely about said cutter axis; a plurality of arcuate inserts disposed end to end and substantially filling said channel, said inserts having an arcuate-shaped base portion retained by interference fit within said channel and a cutting portion extending above said channel.
Claim 31
Dependent Claim
102 words
A drill bit for cutting earthen formation, comprising: a rolling cone cutter having a central axis and a body adapted to be mounted on the drill bit for rotation about said axis, said cutter body including a backface, a heel surface, and a generally conical surface adjacent to said heel surface; a circumferential channel in said cutter body, said channel extending completely about said cutter axis; a plurality of arcuate inserts disposed end to end and substantially filling said channel, said inserts having an arcuate-shaped base portion retained by interference fit within said channel and a cutting portion extending above said channel.
Claim 32
Dependent Claim
16 words
The drill bit of claim 26 wherein said circumferential channel is formed in said conical surface.
Claim 33
Dependent Claim
95 words
The drill bit of claim 26 further comprising: a first circumferential channel formed in said heel surface and extending completely about said axis; a second circumferential channel formed in said conical surface and extending completely about said axis; a plurality of arcuate-shaped inserts disposed in and substantially filling said first channel and having first cutting surfaces; a plurality of arcuate-shaped inserts disposed in and substantially filling said second channel and having second cutting surfaces; wherein said first cutting surfaces are made of a material that is harder than the material of said second cutting surfaces.
Claim 34
Dependent Claim
73 words
The drill bit of claim 26 further comprising: a first circumferential channel formed in said cutter body a second circumferential channel formed in said cutter body and spaced axially apart from said first circumferential channel; first arcuate-shaped inserts retained by interference fit in said first channel and second arcuate-shaped inserts retained by interference fit in said second channel; wherein said cutting portions of said first and second inserts are different in cross section.
Claim 35
Dependent Claim
42 words
The drill bit of claim 29 wherein said cutting portions of said first and second inserts include cutting surfaces, and wherein said cutting surface of said first inserts is made of a harder material than said cutting surface of said second inserts.
Claim 36
Dependent Claim
16 words
The drill bit of claim 26 wherein said arcuate inserts include end surfaces that are non-planar.
Claim 37
Dependent Claim
23 words
The drill bit of claim 31 wherein said arcuate inserts include end portions that overlap with the end portions of adjacent arcuate inserts.
Claim 38
Dependent Claim
56 words
The drill bit of claim 26 wherein said arcuate inserts include a first insert of a first arcuate length and a second insert of a second arcuate length; wherein said second arcuate length is greater than said first arcuate length, and wherein said insert of said second arcuate length includes at least one stress relief discontinuity.
Claim 39
Dependent Claim
38 words
The drill bit of claim 33 wherein said base portion of said arcuate inserts includes a radially innermost surface, and a radially outermost surface, and wherein said stress relief discontinuity extends at least partially along said innermost surface.
Claim 40
Dependent Claim
32 words
The drill bit of claim 33 wherein said base portion of said arcuate inserts includes a bottom surface, and wherein said stress relief discontinuity extends at least partially along said bottom surface.
Claim 41
Dependent Claim
46 words
The drill bit of claim 33 wherein said arcuate insert includes a radially innermost surface and a radially outermost surface and a cutting surface extending therebetween, said stress relief discontinuity comprising a groove formed in at least portions of said innermost surface and said cutting surface.
Claim 42
Dependent Claim
14 words
The drill bit of claim 33 wherein said stress relief discontinuity is three dimensional.
Claim 43
Dependent Claim
34 words
The drill bit of claim 26 wherein said arcuate inserts include inner and outer side surfaces and wherein, in cross-section, at least one of said side surfaces is not parallel to said cone axis.
Claim 44
Dependent Claim
31 words
The drill bit of claim 26 wherein said arcuate inserts include a cutting surface made of material that is different from the material of said base portion retained within said channel.
Claim 45
Dependent Claim
42 words
The drill bit of claim 26 wherein said arcuate inserts include a cutting surface having at least first and second regions exposed to the formation, wherein said first region is made of a material harder than the material of said second region.
Claim 46
Dependent Claim
22 words
The drill bit of claim 40 wherein said first region is positioned radially outwardly from said second region on said cutting surface.
Claim 47
Dependent Claim
19 words
The drill bit of claim 26 wherein, in radial cross-section, said base portion is narrower than said cutting portion.
Claim 48
Dependent Claim
25 words
The drill bit of claim 26 wherein said arcuate inserts include means on said base portions for preventing rotation of said inserts in said channel.
Claim 49
Dependent Claim
29 words
The drill bit of claim 43 wherein said arcuate inserts include side surfaces, and wherein said preventing means includes concavities formed on at least one of said side surfaces.
Claim 50
Dependent Claim
26 words
The drill bit of claim 43 wherein said arcuate inserts include an inner surface, and wherein said preventing means includes flats formed on said inner surface.
Claim 51
Dependent Claim
26 words
The drill bit of claim 43 wherein said arcuate inserts include a bottom surface, and wherein said preventing means includes projections extending from said bottom surface.
Claim 52
Dependent Claim
25 words
The drill bit of claim 43 wherein said preventing means includes projections extending from said groove and sockets in said inserts for receiving said projections.
Claim 53
Dependent Claim
27 words
The drill bit of claim 43 wherein said arcuate inserts include end portions, and wherein said preventing means includes overlapping extensions on end portions of adjacent inserts.
Claim 54
Dependent Claim
21 words
The drill bit of claim 26 wherein at least one of said arcuate inserts includes a knurled surface engaging said channel.
Claim 55
Dependent Claim
53 words
A cutter element for insertion into a cone cutter of a rolling cone drill bit, the cutter element comprising: an arcuate shaped body having a radially innermost side surface and a radially outermost side surface and a cutting surface extending between said side surfaces; at least one stress relief discontinuity on said body.
Claim 56
Dependent Claim
53 words
A cutter element for insertion into a cone cutter of a rolling cone drill bit, the cutter element comprising: an arcuate shaped body having a radially innermost side surface and a radially outermost side surface and a cutting surface extending between said side surfaces; at least one stress relief discontinuity on said body.
Claim 57
Dependent Claim
21 words
The cutter element of claim 50 wherein said body forms a ring-shaped insert having an arcuate length equal to 360 degrees.
Claim 58
Dependent Claim
17 words
The cutter element of claim 50 wherein said body has an arcuate length less than 360 degrees.
Claim 59
Dependent Claim
21 words
The cuter element of claim 50 wherein said stress relief discontinuity comprises a notch formed in one of said side surfaces.
Claim 60
Dependent Claim
19 words
The cuter element of claim 53 further comprising a groove in said cutting surface, said groove intersecting said notch.
Claim 61
Dependent Claim
19 words
The cuter element of claim 54 wherein said groove in said cutting surface extends radially across said cutting surface.
Claim 62
Dependent Claim
27 words
The cutter element of claim 53 wherein said cutting surface includes a first groove intersecting said notch, and a second groove forming cutting edges having negative backrake.
Claim 63
Dependent Claim
21 words
The cutter element of claim 56 wherein said cutting surface further includes a third groove forming cutting edges having positive backrake.
Claim 64
Dependent Claim
22 words
The cutter element of claim 57 wherein said cutting surface further includes a circumferential groove intersecting said first, second and third grooves.
Claim 65
Dependent Claim
37 words
The cuter element of claim 50 wherein said body includes a bottom surface extending between said side surfaces, and wherein said stress relief discontinuity comprises a notch formed in at least a portion of said bottom surface.
Claim 66
Dependent Claim
14 words
The cuter element of claim 53 wherein said stress relief discontinuity is three dimensional.
Claim 67
Dependent Claim
20 words
The cuter element of claim 60 wherein said stress relief discontinuity includes a nonlinear groove formed in said side surface.
Claim 68
Dependent Claim
20 words
The cuter element of claim 60 wherein said stress relief discontinuity includes a nonlinear groove formed in said cutting surface.
Claim 69
Dependent Claim
17 words
The cutter element of claim 50 wherein said body is formed by means of an HIP process.
Claim 70
Dependent Claim
37 words
The cutter element of claim 63 wherein said body includes a first portion formed of a first material and a second portion formed of a second material, said first and second portions having differing degrees of hardness.
Claim 71
Dependent Claim
16 words
The cutter element of claim 64 wherein said cutting surface includes said first and second portions.
Claim 72
Dependent Claim
28 words
The cutter element of claim 65 wherein said first portion is harder than said second portion, and wherein said first portion is radially outward from said second portion.
Claim 73
Dependent Claim
30 words
The cutter element of claim 64 wherein said first portion is harder than said second portion, and wherein said first portion forms at least a portion of said cutting surface.
Claim 74
Dependent Claim
17 words
The cutter element of claim 63 wherein said body includes axially-stacked layers having different degrees of hardness.
Claim 75
Dependent Claim
34 words
The cutter element of claim 68 wherein said body includes at least three axially-stacked layers having different degrees of hardness, the hardest of said layers forming at least a portion of said cutting surface.
Claim 76
Dependent Claim
18 words
The cutter element of claim 50 further comprising concavities formed on at least one of said side surfaces.
Claim 77
Dependent Claim
20 words
The cutter element of claim 70 wherein at least one of said concavities is aligned with said stress relief discontinuity.
Claim 78
Dependent Claim
16 words
The cutter element of claim 50 further comprising projections extending radially outward from outer side surface.
Claim 79
Dependent Claim
18 words
The cutter element of claim 50 further comprising at least one flat formed on said radially innermost surface.
Claim 80
Dependent Claim
20 words
The cutter element of claim 50 wherein said cutting surface includes first grooves forming first cutting edges having negative backrake.
Claim 81
Dependent Claim
19 words
The cutter element of claim 74 wherein said cutting surface further includes a circumferential groove intersecting said first grooves.
Claim 82
Dependent Claim
12 words
The cutter element of claim 50 wherein said body is a spiral.
Claim 83
Dependent Claim
66 words
A cutter element for insertion into a cone cutter of a rolling cone drill bit, the cutter element comprising: an arcuate shaped body having an arcuate length less than 360°, a radially innermost side surface, a radially outermost side surface, and a cutting surface extending between said side surfaces; wherein, in radial cross-section, at least one of said side surfaces is nonparallel to the cone axis.
Claim 84
Dependent Claim
66 words
A cutter element for insertion into a cone cutter of a rolling cone drill bit, the cutter element comprising: an arcuate shaped body having an arcuate length less than 360°, a radially innermost side surface, a radially outermost side surface, and a cutting surface extending between said side surfaces; wherein, in radial cross-section, at least one of said side surfaces is nonparallel to the cone axis.
Claim 85
Dependent Claim
22 words
The cutter element of claim 77 wherein each of said side surfaces in nonparallel to said cone axis when viewed in cross-section.
Claim 86
Dependent Claim
41 words
The cutter element of claim 78 wherein said side surfaces converge toward one another when viewed in cross section such that said body is narrower in cross section at a first end and wider in cross section at a second end.
Claim 87
Dependent Claim
23 words
The cutter element of claim 79 wherein said wider portion of said body is formed of a harder material than said narrower portion.
Claim 88
Dependent Claim
22 words
The cutter element of claim 79 wherein said wider portion of said body includes protrusions forming cutting edges for engaging formation material.
Claim 89
Dependent Claim
22 words
The cutter element of claim 77 wherein said body is formed of a composite of materials by means of an HIP process.
Claim 90
Dependent Claim
46 words
A cutter element for a drill bit, the cutter element comprising: a ring-shaped body having a bottom surface, a radially innermost side surface, a radially outermost side surface, and a cutting surface extending between said side surfaces; at least two stress relief discontinuities on said body.
Claim 91
Dependent Claim
46 words
A cutter element for a drill bit, the cutter element comprising: a ring-shaped body having a bottom surface, a radially innermost side surface, a radially outermost side surface, and a cutting surface extending between said side surfaces; at least two stress relief discontinuities on said body.
Claim 92
Dependent Claim
18 words
The cutter element of claim 83 wherein at least one of said stress relief discontinuities is three dimensional.
Claim 93
Dependent Claim
20 words
The cutter element of claim 83 wherein said cutting surface is made of a harder material than said bottom surface.
Claim 94
Dependent Claim
22 words
The cutter element of claim 83 wherein, in cross-section, said body is wider at said cutting surface than at said bottom surface.
Claim 95
Dependent Claim
25 words
The cutter element of claim 83 wherein said cutting surface includes outer and inner regions, and wherein said outer and inner regions differ in hardness.
Claim 96
Dependent Claim
112 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body, said cone cutter being adapted to rotate about a cone axis; a groove formed in said cone cutter, said groove having a bottom surface and a pair of side surfaces that, in radial cross section, extend from said bottom surface in a direction that is not parallel to said cone axis; at least one elongate insert retained by interference fit within said groove, said insert comprising a pair of ends and an arcuate base surface extending between said ends and facing said bottom surface of said groove.
Claim 97
Dependent Claim
112 words
A bit for drilling a borehole into earthen formations, the bit comprising; a bit body; a rolling cone cutter rotatably mounted on said bit body, said cone cutter being adapted to rotate about a cone axis; a groove formed in said cone cutter, said groove having a bottom surface and a pair of side surfaces that, in radial cross section, extend from said bottom surface in a direction that is not parallel to said cone axis; at least one elongate insert retained by interference fit within said groove, said insert comprising a pair of ends and an arcuate base surface extending between said ends and facing said bottom surface of said groove.
Claim 98
Dependent Claim
21 words
The bit of claim 88 , wherein said groove retains a plurality of inserts in an end-to-end relationship within said groove.
Claim 99
Dependent Claim
24 words
The bit of claim 89 wherein said inserts are gage row cutters having cutting surfaces that extend to cut the corner of the borehole.
Claim 100
Dependent Claim
39 words
The bit of claim 89 wherein said bit includes a single cone cutter having a generally spherical surface divided into a plurality of blades, and wherein said inserts are retained in a groove extending along one of said blades.
Claim 101
Dependent Claim
38 words
The bit of claim 88 wherein said bit includes a single cone cutter having a generally spherical surface, and a plurality of said inserts having arcuate base surfaces, wherein said inserts are circumferentially disposed about said cone axis.
Claim 102
Dependent Claim
20 words
The bit of claim 88 wherein said insert includes a cutting surface extending between said ends along an arcuate path.
References Cited (Backward Citations)
US3223188A
Cited
US4887493A
Cited
US4951762A
Cited
US5341890A
Cited
US5887668A
Cited
US6202752B1
Cited
US5887655A
Cited
US5904211A
Cited
US5421423A
Cited
US5644956A
Cited
US5518077A
Cited
US5452771A
Cited
US5429200A
Cited
GB2321265A
Cited
US5967245A
Cited
US6119797A
Cited
US6343842B1
Cited
US6234261B1
Cited
GB2379682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-11-30 | 2008-05-31 | 2008-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-11-30 | 2012-05-31 | 2012-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-11-30 | 2016-05-31 | 2016-11-30 | $7700.00 | Window Closed / Lapsed |