Patent US3727981A successfully refreshed from Google Patents.
US3727981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knocked-down chair
Assignee: Standard Chair of Gardner Inc
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Filing: 1971-04-05
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Granted: 1973-04-17
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Expires: 1991-04-05
Abstract
Abstract A chair which is shipped disassembled in a small size container and is assembled at destination. The chair has a separate back, arms and seat-leg unit. Optionally, it includes rocking chair runners. The back and arms have cleats fixed to their lower portions which provide a firm foundation and a flush surface to be rigidly fastened to the seat-leg unit. The chair is easily assembled with hand tools and is extremely stable.
Inventors
- 👤 B Ostroff
- 👤 M Ostroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:24
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/029; A47C4/00; A47C4/02; A47C4/028
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
256 words
A chair adapted to be shipped disAssembled and then assembled at destination comprising, in combination: a. a seat-leg unit including a substantially flat seat portion and four legs fixed to the underside of said seat portion and extending substantially normal thereto; b. a chair back including a back rest portion and a flat cleat fixed to the lower extremity of said back rest portion and being disposed substantially normal thereto, said flat cleat having horizontal length and width dimensions exceeding those of said back rest portion lower extremity; c. two chair arms each including an arm rest portion and a flat cleat fixed to the lower extremity of said arm rest portion and being disposed substantially normal thereto, said flat cleat having horizontal length and width dimensions exceeding those of said arm rest portion lower extremity; d. said chair back cleat and said chair arm cleats having flat bottom surfaces, said seat portion having flat upper surfaces at its back and side margins, and said cleats and said seat portion all having aligned fastening means provided therein to facilitate the fastening of the bottom surfaces of said cleats directly upon and against the marginal upper surfaces of said seat portion, said fastened cleats cooperating with said seat portion to provide resistance against unwanted pivotal tipping of said back rest and said arm rests relative to said seat portion; and e. said arm rest portions and said back rest portion having complementary fastening means provided thereon at their points of mutual contact to rigidly fasten them together.
Claim 2
Dependent Claim
256 words
A chair adapted to be shipped disAssembled and then assembled at destination comprising, in combination: a. a seat-leg unit including a substantially flat seat portion and four legs fixed to the underside of said seat portion and extending substantially normal thereto; b. a chair back including a back rest portion and a flat cleat fixed to the lower extremity of said back rest portion and being disposed substantially normal thereto, said flat cleat having horizontal length and width dimensions exceeding those of said back rest portion lower extremity; c. two chair arms each including an arm rest portion and a flat cleat fixed to the lower extremity of said arm rest portion and being disposed substantially normal thereto, said flat cleat having horizontal length and width dimensions exceeding those of said arm rest portion lower extremity; d. said chair back cleat and said chair arm cleats having flat bottom surfaces, said seat portion having flat upper surfaces at its back and side margins, and said cleats and said seat portion all having aligned fastening means provided therein to facilitate the fastening of the bottom surfaces of said cleats directly upon and against the marginal upper surfaces of said seat portion, said fastened cleats cooperating with said seat portion to provide resistance against unwanted pivotal tipping of said back rest and said arm rests relative to said seat portion; and e. said arm rest portions and said back rest portion having complementary fastening means provided thereon at their points of mutual contact to rigidly fasten them together.
Claim 3
Dependent Claim
59 words
The chair of claim 1 further comprising a pair of curved rocking chair runners having fastener holes formed therein, the lower ends of said seat-leg unit legs having corresponding aligned fastener holes formed therein, and fasteners adapted to be inserted into the aligned holes to assemble said rocking chair runners to said four legs to produce a rocking chair.
Claim 4
Dependent Claim
36 words
The chair of claim 1 wherein said cleats are shaped, sized and positioned to be smoothly aligned with the back and side margins of said flat seat portion, said cleats abutting each other end to end.
Claim 5
Dependent Claim
46 words
The chair of claim 1 wherein each said chair arm arm rest portion has a concave notch formed in its trailing end adapted to engage and interlock with an adjacent convex surface of said back rest portion to provide greatly increased rigidity in the assembled chair.
Claim 6
Dependent Claim
59 words
The chair of claim 1 wherein each said chair arm arm rest portion has a fastener hole formed in its trailing end and the adjacent back rest portion has a corresponding fastener hole formed therein, whereby said arm rest portions are adapted to be fastened to said back rest portion to provide greatly increased rigidity in the assembled chair.
Claim 7
Dependent Claim
19 words
The chair of claim 1 further including detachable back and seat cushions adapted to be attached to said chair.
References Cited (Backward Citations)
US2678088A
Cited
US3115367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |