US3906872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner shelf structure
Assignee: Individual
•
Filing: 1974-03-01
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Granted: 1975-09-23
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Expires: 1994-03-01
Abstract
Abstract A knock-down corner shelf structure comprises three uprights interconnected at upper portions to form a skeletal pyramidal corner structure with one of the uprights positioned at the corner of a pair of adjoining walls and the other uprights extending forwardly and downwardly along the two walls. Shelf support rods interconnect the forward uprights and the entire structure is held together in a rigid assembly by a number of triangular shaped shelves connected only at the rear corners to the rear upright. The shelves rest at their forward portions on the forward shelf supports and have outer forward corners that extend forwardly and laterally outwardly of the forward uprights to provide a wedging action that restrains forward motion of the forward uprights.
Inventors
- 👤 Alfred J Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:21
CPC Classifications
A; A47; A47B; A47B81/00; A47B81/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
236 words
A corner shelf structure comprising a rear post and first and second forward posts, all interconnected at upper ends thereof to form a skeletal pyramidal structure, a forward shelf support comprising a substantially horizontally extending support member connected at opposite ends thereof to said first and second forward posts, a substantially horizontal shelf having a rear corner, and first and second forward corners, having first and second side edges extending from the rear post to the first and second forward posts respectively, and having a forward edge extending substantially between said first and second forward posts, and means for connecting said rear corner to said rear post, said shelf being free of connection with said forward shelf support and being free of connection with said first and second forward posts but having a forward portion resting upon said shelf support, said forward edge extending forwardly of said shelf support and said forward corners extending forwardly of said first and second forward posts respectively, and said side edges of the shelf being in contact with said forward posts, motion of said forward posts away from one another being resisted by said forward shelf support and motion of said forward posts away from said rear post being resisted by the forward shelf corners, whereby the forward posts are locked in position by the collective restraints exerted by the forward shelf support and the forward corners of the shelf.
Claim 2
Dependent Claim
236 words
A corner shelf structure comprising a rear post and first and second forward posts, all interconnected at upper ends thereof to form a skeletal pyramidal structure, a forward shelf support comprising a substantially horizontally extending support member connected at opposite ends thereof to said first and second forward posts, a substantially horizontal shelf having a rear corner, and first and second forward corners, having first and second side edges extending from the rear post to the first and second forward posts respectively, and having a forward edge extending substantially between said first and second forward posts, and means for connecting said rear corner to said rear post, said shelf being free of connection with said forward shelf support and being free of connection with said first and second forward posts but having a forward portion resting upon said shelf support, said forward edge extending forwardly of said shelf support and said forward corners extending forwardly of said first and second forward posts respectively, and said side edges of the shelf being in contact with said forward posts, motion of said forward posts away from one another being resisted by said forward shelf support and motion of said forward posts away from said rear post being resisted by the forward shelf corners, whereby the forward posts are locked in position by the collective restraints exerted by the forward shelf support and the forward corners of the shelf.
Claim 3
Dependent Claim
44 words
The corner shelf structure of claim 1 wherein said shelf is of a substantially triangular configuration and wherein said means for connecting said rear corner to said rear post comprises hook means secured to said rear post and connected with said rear shelf corner
Claim 4
Dependent Claim
41 words
The shelf structure of claim 1 wherein said shelf is of a substantially triangular configuration, and wherein said side edges are in wedging engagement with said forward uprights to restrain forward motion of said forward uprights away from said rear upright.
Claim 5
Dependent Claim
45 words
The shelf structure of claim 1 wherein said forward shelf support comprises a rod connected at opposite ends thereof to said first and second forward post and extending therebetween, and wherein said shelf comprises a flat member having its forward portion resting on said rod.
Claim 6
Dependent Claim
38 words
The corner shelf structure of claim 2 wherein said hook means comprises a hook fixed to one of said rear post and said shelf and a hook receiver fixed to the other of said rear post and shelf.
Claim 7
Dependent Claim
38 words
The shelf structure of claim 1 wherein said means for connecting said rear corner to said rear post comprises a hook in the rear post and a hook receiving aperture formed in the rear corner of the shelf.
Claim 8
Dependent Claim
39 words
The shelf structure of claim 1 wherein said forward shelf support member comprises a substantially rigid horizontally extending rod, each of said forward posts having an aperture that snugly receives a respective one of the ends of said rod.
Claim 9
Dependent Claim
117 words
The corner shelf structure of claim 7 including means for interconnecting said posts at upper portions thereof, said interconnecting means comprising a pair of pin-receiving holes formed in an upper portion of said rear post, a third pin-receiving hole formed in an upper portion of one of said forward posts and a fourth pin-receiving hole formed in an upper portion of the other of said forward posts, a first pin received in one of the holes of the rear post and in a corresponding hole of said one forward post and a second pin received in the other of the holes in the rear post and in a corresponding hole of the other of said forward posts.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |