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 12:30
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06
Claims Analysis
Total Claims: 0
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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 |