US2011942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra short wave receiver
Assignee: RCA Corp
•
Filing: 1932-01-16
•
Granted: 1935-08-20
•
Expires: 1952-01-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph W George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:40
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/18; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H03; H03D; H03D11/00; H03D11/02; H03D9/00; H03D9/06; H03D9/065; H03F; H03F3/00; H03F3/50; H03F3/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-08-19 | 1939-02-18 | 1939-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-19 | 1943-02-18 | 1943-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-19 | 1947-02-18 | 1947-08-20 | $7700.00 | Window Closed / Lapsed |