Patent US3284743A successfully refreshed from Google Patents.
US3284743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switching device
Assignee: Westinghouse Electric Corp
•
Filing: 1965-05-10
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Granted: 1966-11-08
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Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Spewock Metro
- 👤 Walter V Bratkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:04
CPC Classifications
H; H01; H01H; H01H36/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A MAGNETIC SWITCHING DEVICE COMPRISING A RESILIENT ELECTRICALLY CONDUCTIVE CONTACT ARM, FIRST AND SECOND CON-
Claim 2
Dependent Claim
15 words
A MAGNETIC SWITCHING DEVICE COMPRISING A RESILIENT ELECTRICALLY CONDUCTIVE CONTACT ARM, FIRST AND SECOND CON-
References Cited (Backward Citations)
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US2945928A
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US3025372A
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US3043931A
Cited
US2985734A
Cited
GB894378A
Cited
US2987593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |