US3065318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic inductor switch
Assignee: Otis Elevator Co
•
Filing: 1961-04-24
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Granted: 1962-11-20
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Prince Arthur Ennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/16; B; B66; B66B; B66B1/00; B66B1/02; B66B1/06; B66B1/14; B66B1/16; B66B1/34; B66B1/46; B66B1/50; H01H36/00; H01H36/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |