Patent US2802943A successfully refreshed from Google Patents.
US2802943A
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US
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Automatic adjustment of frequency stabilization systems
Assignee: RCA Corp
•
Filing: 1949-07-16
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Granted: 1957-08-13
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Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 William D Hershberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:44
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26; H03L7/02; H03L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284266A
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US2265796A
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US2287925A
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US2396688A
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US2410817A
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US2462856A
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US2425922A
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US2452575A
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US2547890A
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US2555131A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |