US2653682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber
Assignee: PATENT DEV Co
•
Filing: 1949-12-17
•
Granted: 1953-09-29
•
Expires: 1969-12-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph H Whisler
- 👤 Dale A Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:36
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/34; F16F9/348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078364A
Cited
US2240644A
Cited
US2384186A
Cited
US2355491A
Cited
US2473043A
Cited
US2403648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |