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Patent US2665375A successfully refreshed from Google Patents.
US2665375A
Expired / Lapsed
US
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Radio telephone system
Assignee: The General Electric Company PLC
•
Filing: 1949-09-09
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Granted: 1954-01-05
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Expires: 1969-09-09
Abstract
No abstract record available.
Inventors
- 👤 Collyer John Edward
- 👤 Fairbairn Eric Playfair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:21
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377544A
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US1212908A
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US1710182A
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US1723209A
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US2061699A
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US2137023A
Cited
US2292222A
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US2377453A
Cited
US2421017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |