Patent US4684024A successfully refreshed from Google Patents.
US4684024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover for baked goods
Assignee: PAR-PAK Ltd A CORP OF ONTARIO
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Filing: 1986-02-11
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Granted: 1987-08-04
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Expires: 2006-02-11
Abstract
Abstract A package is disclosed to enclose bakery items, particularly cakes. The package has a transparent, light-weight, domed plastic cover and a flat base upon which the cake is received. The cover has catch means provided on its side walls at circumferentially spaced locations to be engaged by U-shaped hook members partially cut from outwardly extending projections from the base. The hook members are bendable upwardly to positions in which their blights overlie and engage catch means on the cover to couple the cover to the base.
Inventors
- 👤 Sajjad Ebrahim
- 👤 Donald K. Hexamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/16; B65D45/18; B65D85/00; B65D85/30; B65D85/36; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/906
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
531 words
A package for bakery items comprising: thin planar base means of expanded polystyrene to support bakery items thereon, removable cover means comprising transparent thermoplastic material and having a top wall and side walls depending peripherally from the top wall, the side walls rising upwardly toward the top wall from a bottom edge portion of the cover means substantially lying in the plane of the base means and resting on the periphery of the base means, the bottom edge portion comprising a flange-like border member which extends outwardly to where the cover means terminates as a peripheral side edge of the border member, the side walls having a plurality of circumferentially spaced integral catch means projecting outwardly from the side walls, each catch means rising upwardly from the bottom edge portion to an upwwardly directed catch surface at a height above the border member, the border member encircling the side walls and their catch means outwardly thereof continuously about the entire perimeter of the cover means so as to space upwardly rising portions of the side walls and their catch means from the peripheral side edge, the base means having a plurality of circumferentially spaced, outwardly-projecting hook-forming portions which extend outwardly beyond the peripheral side edge of the cover means, one hook-forming portion below each catch means, a U-shaped cut line through each hook-forming portion located marginally outward of the peripheral side edge and defining between the cut line and an outer edge of the base means an outer hook member with an inwardly facing blight bordering on the cut line, a first straight score line on each hook-forming portion located marginally outward of the peripheral side edge and extending from a first end of said cut line to the edge of the base means, a second straight score line on each hook-forming portion located marginally outward of the peripheral side edge and extending from the other, second end of said cut line to the edge of the base means, the second score line lying along an extension of the first score line, the peripheral side edge of the cover means over the hook-forming portion being located substantially coincident with each of the first score line, the cut line and the second score line marginally inwardly thereof, each hook member bendable with respect of the remainder of the base means about the first and second score lines to pivot the hook member upwardly toward the cover means to a position with the hook member overlying a rerespective catch means with the blight of the hook member engaged on the upwardly directed catch surface of the catch means to securely couple the cover means to the base means, base means, the base means providing a continuous, planar support surface underlying the entirety of the cover means within an area defined by the peripheral side edge, and said blight including a wide, flat central section parallel to said first score line, the upwardly directed catch surface having a width marginally less than that of said central section with the upwardly directed catch surface disposed parallel to said central section for engagement by the central section over substantially the entire width of the central section.
Claim 2
Dependent Claim
531 words
A package for bakery items comprising: thin planar base means of expanded polystyrene to support bakery items thereon, removable cover means comprising transparent thermoplastic material and having a top wall and side walls depending peripherally from the top wall, the side walls rising upwardly toward the top wall from a bottom edge portion of the cover means substantially lying in the plane of the base means and resting on the periphery of the base means, the bottom edge portion comprising a flange-like border member which extends outwardly to where the cover means terminates as a peripheral side edge of the border member, the side walls having a plurality of circumferentially spaced integral catch means projecting outwardly from the side walls, each catch means rising upwardly from the bottom edge portion to an upwwardly directed catch surface at a height above the border member, the border member encircling the side walls and their catch means outwardly thereof continuously about the entire perimeter of the cover means so as to space upwardly rising portions of the side walls and their catch means from the peripheral side edge, the base means having a plurality of circumferentially spaced, outwardly-projecting hook-forming portions which extend outwardly beyond the peripheral side edge of the cover means, one hook-forming portion below each catch means, a U-shaped cut line through each hook-forming portion located marginally outward of the peripheral side edge and defining between the cut line and an outer edge of the base means an outer hook member with an inwardly facing blight bordering on the cut line, a first straight score line on each hook-forming portion located marginally outward of the peripheral side edge and extending from a first end of said cut line to the edge of the base means, a second straight score line on each hook-forming portion located marginally outward of the peripheral side edge and extending from the other, second end of said cut line to the edge of the base means, the second score line lying along an extension of the first score line, the peripheral side edge of the cover means over the hook-forming portion being located substantially coincident with each of the first score line, the cut line and the second score line marginally inwardly thereof, each hook member bendable with respect of the remainder of the base means about the first and second score lines to pivot the hook member upwardly toward the cover means to a position with the hook member overlying a rerespective catch means with the blight of the hook member engaged on the upwardly directed catch surface of the catch means to securely couple the cover means to the base means, base means, the base means providing a continuous, planar support surface underlying the entirety of the cover means within an area defined by the peripheral side edge, and said blight including a wide, flat central section parallel to said first score line, the upwardly directed catch surface having a width marginally less than that of said central section with the upwardly directed catch surface disposed parallel to said central section for engagement by the central section over substantially the entire width of the central section.
Claim 3
Dependent Claim
29 words
A package as claimed in claim 1 wherein the width of the central section is approximately the same as the height of the catch surface above the border member.
Claim 4
Dependent Claim
38 words
A package as claimed in claim 2 wherein the side walls comprise a generally frusto-conical segment enlarging from the top wall to the bottom edge portion, and only two catch means are provided, at circumferentially diametrically opposite positions.
Claim 5
Dependent Claim
49 words
A package as claimed in claim 1 wherein the catch means comprises an outwardly facing, upwardly and inwardly sloped cam surface to be contacted by said blight and guide the blight upward into engagement with said upper catch surface on pivoting the hook member upwardly toward the cover means.
Claim 6
Dependent Claim
50 words
A package as claimed in claim 4 wherein said cam surface has an uppermost end raised above the upper catch surface to form outwardly of the catch surface a raised inwardly facing shoulder to catch the blight and resist removal of the blight from engagement with the upper catch surface.
Claim 7
Dependent Claim
34 words
A package as claimed in claim 5 wherein the catch means is resiliently deformable to permit said blight to pass over said shoulder to couple and uncouple the cover means to the base means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |