US2602887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio transmitter
Assignee: RCA Corp
•
Filing: 1948-10-04
•
Granted: 1952-07-08
•
Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 George H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:12
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/20; H03F3/22; H03F1/00; H03F1/02; H03F1/04; H03F1/06; H03H; H03H7/00; H03H7/48; H03H7/487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283897A
Cited
US2244756A
Cited
US2280282A
Cited
US2416790A
Cited
US2369589A
Cited
US2534624A
Cited
US2454907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |