Patent US2780321A successfully refreshed from Google Patents.
US2780321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable shock absorber
Assignee: Individual
•
Filing: 1953-01-07
•
Granted: 1957-02-05
•
Expires: 1973-01-07
Abstract
No abstract record available.
Inventors
- 👤 Sturari Chermino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:13
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/44; F16F9/46
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1365030A
Cited
GB290983A
Cited
US2025199A
Cited
US2182034A
Cited
US2122407A
Cited
US2148839A
Cited
US2662615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |