Patent US4162731A successfully refreshed from Google Patents.
US4162731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight, quick assembly furniture
Assignee: Individual
•
Filing: 1978-01-09
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Granted: 1979-07-31
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Expires: 1998-01-09
Abstract
Abstract A wide variety of lightweight, simple to assemble furniture items are formed from rigid load bearing (normally vertical) members, rigid cross rods (normally horizontal) fastened to the rigid load bearing members and flexible sheet material. The sheet material interconnects at least two rods to form a shelf, ledge, seat or other holder or support. The flexible members have spring-locking engagement with the rod members and a frictional engagement with the load bearing members. These three elements form a rigid unit when fastened together.
Inventors
- 👤 Theodore C. DeGroot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
An article of furniture comprising: a plurality of load bearing members formed from a light weight and low strength material; a plurality of extending members interconnecting said load bearing members for forming a shell therewith when interconnected; a shelf means formed from a light weight flexible material having a first engaging surface formed thereon for engaging said extending members; said engaging surface having a flexible detent member formed thereon for engaging said extending member in a positive locking action; and, said engaging surface is formed in an "e" shape where the open portion of the "e" is smaller than said extending member; said "e" is formed into a latch member which requires releasing to nondestructively remove the extending member from engagement with said "e" shape.
Claim 2
Dependent Claim
125 words
An article of furniture comprising: a plurality of load bearing members formed from a light weight and low strength material; a plurality of extending members interconnecting said load bearing members for forming a shell therewith when interconnected; a shelf means formed from a light weight flexible material having a first engaging surface formed thereon for engaging said extending members; said engaging surface having a flexible detent member formed thereon for engaging said extending member in a positive locking action; and, said engaging surface is formed in an "e" shape where the open portion of the "e" is smaller than said extending member; said "e" is formed into a latch member which requires releasing to nondestructively remove the extending member from engagement with said "e" shape.
Claim 3
Dependent Claim
24 words
The article claimed in claim 1 wherein: said flexible material has edges formed into a second engaging surfaces for engaging said load bearing members.
Claim 4
Dependent Claim
41 words
The article claimed in claim 1 wherein: said shelf means has edges formed into second engaging surfaces for engaging said load bearing members; said second engaging surfaces comprise a plurality of toothed members formed on the edge of the flexible material.
Claim 5
Dependent Claim
36 words
The article claimed in claim 1 wherein: said engaging surfaces having flexible detent members thereon are formed on two ends of said flexible material for engaging said extending members on two ends of said flexible material.
Claim 6
Dependent Claim
112 words
The article claimed in claim 1 wherein: said article comprises at least four extending members arranged vertically in at least two rows; at least two vertically arranged in upper and lower shelf means each having engaging surfaces formed thereon for engaging one of said extending members in each row; said engaging surfaces having an outer surface; said shelf means having a central portion between said engaging surfaces; the engaging surface outer portion of the lower shelf means abuts the upper shelf means central portion for contributing to the support of said upper shelf means by taking to one of the extending members a portion of the load on the upper shelf 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) | 1982-07-30 | 1983-01-29 | 1983-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-30 | 1987-01-29 | 1987-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-30 | 1991-01-29 | 1991-07-31 | $7700.00 | Window Closed / Lapsed |