US2831938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Motors Liquidation Co
•
Filing: 1954-05-26
•
Granted: 1958-04-22
•
Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 David F Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:09
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20; H01H50/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US817719A
Cited
US1024896A
Cited
US1626528A
Cited
GB306337A
Cited
US2006690A
Cited
USRE20094E
Cited
US2223105A
Cited
US2348556A
Cited
US2344654A
Cited
US2471815A
Cited
US2606051A
Cited
US2671140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |