Patent US2532781A successfully refreshed from Google Patents.
US2532781A
Expired / Lapsed
US
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Torsional vibration pickup
Assignee: Motors Liquidation Co
•
Filing: 1944-04-21
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Granted: 1950-12-05
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Expires: 1964-04-21
Abstract
No abstract record available.
Inventors
- 👤 Petersen Ludvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:07
CPC Classifications
G; G01; G01H; G01H1/00; G01H1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1599922A
Cited
DE470454C
Cited
FR719762A
Cited
GB423706A
Cited
US2161256A
Cited
US2193910A
Cited
US2252464A
Cited
GB508657A
Cited
US2288838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |