Patent DE473375C successfully refreshed from Google Patents.
US2174154A
Expired / Lapsed
US
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Ultra high frequency transmitter
Assignee: RCA Corp
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Filing: 1936-05-06
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Granted: 1939-09-26
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Expires: 1956-05-06
Abstract
No abstract record available.
Inventors
- 👤 Orville E Dow
- 👤 Nils E Lindenblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:13
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/12; H03F1/13; H03L; H03L7/00; H03L7/02; H03L7/04; H04; H04B; H04B1/00; H04B1/02; H04B1/04; H04N; H04N5/00; H04N5/38; H04N5/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-09-25 | 1943-03-27 | 1943-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-25 | 1947-03-27 | 1947-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-25 | 1951-03-27 | 1951-09-26 | $7700.00 | Window Closed / Lapsed |