Patent US2769632A successfully refreshed from Google Patents.
US2769632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damped pneumatic spring
Assignee: Individual
•
Filing: 1952-10-14
•
Granted: 1956-11-06
•
Expires: 1972-10-14
Abstract
No abstract record available.
Inventors
- 👤 Bourcier Christian Marie Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:29
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB208329A
Cited
US1967641A
Cited
US2045027A
Cited
FR777611A
Cited
US2093259A
Cited
US2346667A
Cited
US2554581A
Cited
US2364823A
Cited
US2451171A
Cited
US2564790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |