US2659413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posture chair
Assignee: Individual
•
Filing: 1948-12-10
•
Granted: 1953-11-17
•
Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 Roy A Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/20; A47C3/34; A47C7/00; A47C7/002; A47C7/004; A47C7/006; A47C7/50; A47C7/506; A47C7/5062; A47C7/5064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US277759A
Cited
US316281A
Cited
US373249A
Cited
US1001417A
Cited
US1610069A
Cited
US2308358A
Cited
US2516801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |