Patent US2332722A successfully refreshed from Google Patents.
US2987110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustment locking device for chair base
Assignee: CRAMER POSTURE CHAIR Co I
•
Filing: 1960-02-08
•
Granted: 1961-06-06
•
Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy A Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:42
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/20; A47C3/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1589847A
Cited
US1399465A
Cited
US1513695A
Cited
US2026298A
Cited
US2058451A
Cited
GB581856A
Cited
US2412451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |