US2515213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency communication system
Assignee: RCA Corp
•
Filing: 1943-05-20
•
Granted: 1950-07-18
•
Expires: 1963-05-20
Abstract
No abstract record available.
Inventors
- 👤 De Witt R Goddard
- 👤 Kenneth G Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:07
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/54
Claims Analysis
Total Claims: 0
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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) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |