US2653315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency control system for microwave relay terminal stations
Assignee: RCA Corp
•
Filing: 1951-02-20
•
Granted: 1953-09-22
•
Expires: 1971-02-20
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:02
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2603; H04B7/2606; H04B7/14; H04B7/15; H04B7/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284706A
Cited
US2333719A
Cited
US2408826A
Cited
US2519369A
Cited
US2460781A
Cited
US2614211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |