Patent US2945928A successfully refreshed from Google Patents.
US2945928A
Expired / Lapsed
US
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Magnetic switches
Assignee: Robertshaw Controls Co
•
Filing: 1958-07-01
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Granted: 1960-07-19
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Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Roy W Houser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1958482A
Cited
US2305974A
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US2323910A
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US2519025A
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US2570315A
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US2584079A
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US2548581A
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US2820881A
Cited
US2853576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |