Patent US2886671A successfully refreshed from Google Patents.
US2886671A
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US
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Multiple pole vacuum switch
Assignee: Jennings Radio Manufacturing Corp
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Filing: 1956-09-27
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Granted: 1959-05-12
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Expires: 1976-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Steward
- 👤 Jack S Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:17
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US285778A
Cited
US453484A
Cited
DE594282C
Cited
GB206841A
Cited
US1486386A
Cited
US2156974A
Cited
US2640890A
Cited
US2633485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |