US2211091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superregenerative magnetron receiver
Assignee: RCA Corp
•
Filing: 1938-01-31
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Granted: 1940-08-13
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Expires: 1958-01-31
Abstract
No abstract record available.
Inventors
- 👤 Rene A Braden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:15
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/26; A; A45; A45D; A45D6/00; A45D6/02; H03D11/00; H03D11/02
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) | 1943-08-13 | 1944-02-12 | 1944-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-13 | 1948-02-12 | 1948-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-13 | 1952-02-12 | 1952-08-13 | $7700.00 | Window Closed / Lapsed |