Patent US2143634A successfully refreshed from Google Patents.
US2143634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable seat construction
Assignee: American Forging and Socket Co
•
Filing: 1937-06-18
•
Granted: 1939-01-10
•
Expires: 1957-06-18
Abstract
No abstract record available.
Inventors
- 👤 Walter S Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:48
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/18; B60N2/1807; B60N2/1839; B60N2/185; B60N2/1875; B60N2/1892; B60N2/1896
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-01-09 | 1942-07-11 | 1943-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-09 | 1946-07-11 | 1947-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-09 | 1950-07-11 | 1951-01-10 | $7700.00 | Window Closed / Lapsed |