Patent US2693510A successfully refreshed from Google Patents.
US2693510A
Expired / Lapsed
US
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Condenser discharger switch
Assignee: Collins Radio Co
•
Filing: 1952-09-05
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Granted: 1954-11-02
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Expires: 1972-09-05
Abstract
No abstract record available.
Inventors
- 👤 Walter C Luebking
- 👤 Robert J Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:11
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1862928A
Cited
US1928691A
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US1865237A
Cited
US2144873A
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US2165025A
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US2312243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |