Patent US3053569A successfully refreshed from Google Patents.
US3053569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat structure
Assignee: Individual
•
Filing: 1961-03-09
•
Granted: 1962-09-11
•
Expires: 1981-03-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Alexander B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:32
CPC Classifications
A; A47; A47C; A47C5/00; A47C5/005; A47C7/00; A47C7/02; A47C7/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270598A
Cited
GB459000A
Cited
US2607400A
Cited
US2806514A
Cited
US2759527A
Cited
US2825391A
Cited
US2940511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |