US2881285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay device for circuit breakers
Assignee: Allis Chalmers Corp
•
Filing: 1954-06-24
•
Granted: 1959-04-07
•
Expires: 1974-06-24
Abstract
No abstract record available.
Inventors
- 👤 Thor G Bank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:38
CPC Classifications
F; F16; F16H; F16H35/00; F16H35/14; H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/44; H01H71/443
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1389140A
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US894910A
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US1138800A
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US1449025A
Cited
GB255872A
Cited
FR642711A
Cited
US2103378A
Cited
US2579334A
Cited
US2740074A
Cited
US2702398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |