Patent US3863876A successfully refreshed from Google Patents.
US3863876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upright support
Assignee: CANTRECO Ltd
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Filing: 1973-02-01
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Granted: 1975-02-04
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Expires: 1993-02-01
Abstract
Abstract An upright support comprising three interlocking leg members each having a leg section and a cup forming flange at a connecting end thereof. The cup forming flange defines a front face and opposed arms projecting angularly forward and one on each side of the leg section. Interlocking means are further provided on the free end of the cup forming arms and adapted to interlock with the interlocking means on a cup forming arm of an adjacent leg member to form a hollow central cup between the front face of the cup forming flange of the three interlocking leg members.
Inventors
- 👤 Laurence Stephen Finkelstein
- 👤 Gabor Gellert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:01
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/02; A47B13/023; A47B2013/025
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
An upright support comprising three interlocking leg members each having a leg section and a cup forming flange at a connecting end thereof, said cup forming flange defining a front face and opposed arms projecting angularly forward and one on each side of said leg section, each of said arms having a substantially flat vertical end face, an elongated vertical tongue molded along one of said end faces of one of said arms of said opposed arms, an elongated vertical groove formed in the end face of the other of said arms, said tongue and groove each having a transverse cross-section of a configuration to permit said tongue to be slideably received and retained in a groove of an adjacent leg member to interlock therewith, and a stop post in the lower portion of only two of said grooves to limit the sliding movement of a tongue therein to provide vertical alignment of said three leg members, said three leg members when interlocked together forming a hollow central circular cup between the front face of each cup forming flange.
Claim 2
Dependent Claim
179 words
An upright support comprising three interlocking leg members each having a leg section and a cup forming flange at a connecting end thereof, said cup forming flange defining a front face and opposed arms projecting angularly forward and one on each side of said leg section, each of said arms having a substantially flat vertical end face, an elongated vertical tongue molded along one of said end faces of one of said arms of said opposed arms, an elongated vertical groove formed in the end face of the other of said arms, said tongue and groove each having a transverse cross-section of a configuration to permit said tongue to be slideably received and retained in a groove of an adjacent leg member to interlock therewith, and a stop post in the lower portion of only two of said grooves to limit the sliding movement of a tongue therein to provide vertical alignment of said three leg members, said three leg members when interlocked together forming a hollow central circular cup between the front face of each cup forming flange.
Claim 3
Dependent Claim
45 words
An upright support as claimed in claim 1 wherein said tongue has a flat end wall and inwardly sloping side walls, said groove having a flat bottom wall and tapering side walls to slideably receive a tongue of an adjacent leg member to interlock thereto.
Claim 4
Dependent Claim
30 words
An upright support as claimed in claim 1 wherein there is further provided a cup bottom wall section extending substantially perpendicular to said front face of said cup forming flange.
Claim 5
Dependent Claim
30 words
An upright support as claimed in claim 3 wherein said bottom wall section of each of said three leg members defines a hole therebetween when said leg members are interlocked.
Claim 6
Dependent Claim
51 words
An upright support as claimed in claim 1 wherein said hollow central circular cup has a bottom wall and a side wall formed by said concave surfaces, said side wall tapering angularly outwards from said bottom wall to frictionally retain the end of a circular pole in a major portion thereof.
Claim 7
Dependent Claim
52 words
An upright support as claimed in claim 1 wherein said leg section defines a support end at the end opposite said connecting end, said leg section being angulated upwardly from said support end to said connecting end to support said hollow central cup above ground when said three leg members are interconnected.
Claim 8
Dependent Claim
42 words
An upright support as claimed in claim 1 wherein said front face of said cup forming flange slopes angularly upwards away from the vertical axis and wherein the end face of each of said arms extends substantially parallel to said vertical axis.
References Cited (Backward Citations)
US140054A
Cited
US582973A
Cited
US1394070A
Cited
US680771A
Cited
US668522A
Cited
US1263160A
Cited
US3719340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |