US3411375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary switch having torsion bar type return spring
Assignee: Shallcross Manufacturing Co
•
Filing: 1967-02-03
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Granted: 1968-11-19
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Expires: 1987-02-03
Abstract
No abstract record available.
Inventors
- 👤 Peter A Medicks
- 👤 Earl E Schwarzenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; G; G05; G05G; G05G5/00; G05G5/05; G05G5/06; G05G2700/00; G05G2700/04; G05G2700/08; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2251612A
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US2419986A
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US2404633A
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US2638003A
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US2694319A
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US2777472A
Cited
US3190983A
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US3336816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |