US3037814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backrest assembly for chairs
Assignee: Shwayder Brothers Inc
•
Filing: 1959-09-14
•
Granted: 1962-06-05
•
Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 David E Gardner
- 👤 Marvin M King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:47
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; A47C31/00; A47C31/02; A47C31/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364647A
Cited
US2415889A
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US2550479A
Cited
NL72191C
Cited
US2628668A
Cited
US2706518A
Cited
US2785733A
Cited
GB795264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |