US2764020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration pick-up device
Assignee: Motors Liquidation Co
•
Filing: 1953-04-29
•
Granted: 1956-09-25
•
Expires: 1973-04-29
Abstract
No abstract record available.
Inventors
- 👤 Charles W Gadd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:12
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/02; G01M7/025; G01H; G01H11/00; G01H11/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US749854A
Cited
US2074417A
Cited
US2002372A
Cited
US2070121A
Cited
US2596048A
Cited
US2300198A
Cited
US2444118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |