US2885905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable lever locking devices for electric switches
Assignee: Cutler Hammer Inc
•
Filing: 1956-02-15
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Granted: 1959-05-12
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Expires: 1976-02-15
Abstract
No abstract record available.
Inventors
- 👤 Robert E Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:17
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/20; H01H23/00; H01H23/02; H01H23/04; H01H23/06; H01H23/065; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20636; Y10T74/20672; Y10T74/2069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988636A
Cited
US2223032A
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US2246919A
Cited
US2409022A
Cited
US2510122A
Cited
US2723571A
Cited
US2759075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |