Patent US2219605A successfully refreshed from Google Patents.
US2420264A
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Stabilizing means for the control of a frequency modulated ultrashort wave transmitter
Assignee: Individual
•
Filing: 1942-06-30
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Granted: 1947-05-06
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Expires: 1962-06-30
Abstract
No abstract record available.
Inventors
- 👤 Rost Helge Fabian
- 👤 Thunell Karl Harry
- 👤 Vigren Sten Daniel
- 👤 Claesson Per Harry Elias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:05
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/02; H03C3/09; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1626724A
Cited
US1924174A
Cited
US2243202A
Cited
US2242249A
Cited
US2299619A
Cited
US2236893A
Cited
US2294942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |