US2642495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial transmission line switch
Assignee: ETHEL M GEORGE
•
Filing: 1947-08-21
•
Granted: 1953-06-16
•
Expires: 1967-08-21
Abstract
No abstract record available.
Inventors
- 👤 Haulman Clyde Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:08
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2251997A
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US2235010A
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US2264124A
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US2344780A
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US2426186A
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US2360219A
Cited
US2427940A
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US2478781A
Cited
US2425010A
Cited
US2472274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |