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US2905784A
Expired / Lapsed
US
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Magnetically-actuated switch device
Assignee: G M Giannini & Co Inc
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Filing: 1955-07-26
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Granted: 1959-09-22
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Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Ducati Adriano Cavalieri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:44
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US684378A
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US2001579A
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US2288451A
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US2360941A
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US2510700A
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US2549323A
Cited
US2709728A
Cited
US2706756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |