Patent US3971587A successfully refreshed from Google Patents.
US3971587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
U-shaped furniture frame
Assignee: Hercules LLC
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Filing: 1975-09-30
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Granted: 1976-07-27
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Expires: 1995-09-30
Abstract
Abstract A U-shaped molded plastic furniture frame for use in fabrication of a barrel shaped chair. Each end of the frame has a box portion formed therein for receiving a front support member of a desired length to provide a chair having a preselected width. The frame also has facilities integrally molded therein for receiving the arms, legs and backs of a chair. Additionally, other facilities may be provided for the easy attachment of springs, spring supports, or other support members to the frame.
Inventors
- 👤 William R. Curtis
- 👤 David C. Trimble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:07
CPC Classifications
A; A47; A47C; A47C5/00; A47C5/12; Y; Y10; Y10S; Y10S297/00; Y10S297/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A furniture frame for a barrel shaped chair comprising: an integral U-shaped member made of plastic material, each end thereof having an inwardly projecting box portion for receiving a horizontal support member; said ends being movable toward and away from each other due to the flexure of the U-shaped member to accommodate various lengths of support members to form a chair of varying widths; said U-shaped member having means intermediate the ends thereof formed therein in the top thereof for receiving vertical arm supports; and said U-shaped member having means formed therein in the bottom thereof for receiving legs.
Claim 2
Dependent Claim
99 words
A furniture frame for a barrel shaped chair comprising: an integral U-shaped member made of plastic material, each end thereof having an inwardly projecting box portion for receiving a horizontal support member; said ends being movable toward and away from each other due to the flexure of the U-shaped member to accommodate various lengths of support members to form a chair of varying widths; said U-shaped member having means intermediate the ends thereof formed therein in the top thereof for receiving vertical arm supports; and said U-shaped member having means formed therein in the bottom thereof for receiving legs.
Claim 3
Dependent Claim
28 words
A furniture frame for a barrel shaped chair as set forth in claim 1 including means for securing the ends of bowed sinusoidal springs to said U-shaped member.
Claim 4
Dependent Claim
42 words
A furniture frame for a barrel shaped chair as set forth in claim 2 wherein said securing means comprises a plurality of projections integrally molded into said frame, each projection having an opening therethrough for receiving and end of a sinusoidal spring.
Claim 5
Dependent Claim
35 words
A furniture frame for a barrel shaped chair as set forth in claim 1 wherein the back portion of said U-shaped member has an opening in the underside thereof for receiving a rear support member.
Claim 6
Dependent Claim
44 words
A furniture frame for a barrel shaped chair as set forth in claim 1 wherein the back portion of said U-shaped member has a plurality of openings for receiving the ends of support members which extend parallel to the sides of said U-shaped member.
Claim 7
Dependent Claim
37 words
A furniture frame for a barrel shaped chair as set forth in claim 1 wherein the top has openings therein adjacent to each of the ends for receiving corner members to provide a built up hard corner.
Claim 8
Dependent Claim
24 words
A furniture frame for a barrel shaped chair as set forth in claim 1 including means for receiving threaded ends of screw-on type legs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |