Patent US2536748A successfully refreshed from Google Patents.
US2536748A
Expired / Lapsed
US
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Magnetic vibratory switch
Assignee: Individual
•
Filing: 1945-08-17
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Granted: 1951-01-02
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Expires: 1965-08-17
Abstract
No abstract record available.
Inventors
- 👤 Stephen F James
- 👤 Esther D James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:25
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64; H01H50/74; H01H50/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1535088A
Cited
US2072578A
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US2190685A
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US2185950A
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US2280023A
Cited
US2372965A
Cited
US2364684A
Cited
GB550975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |