US2469941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning control and band switching arrangement
Assignee: Collins Radio Co
•
Filing: 1946-03-05
•
Granted: 1949-05-10
•
Expires: 1966-03-05
Abstract
No abstract record available.
Inventors
- 👤 Hardin T Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:08
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/24; H03J5/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1687500A
Cited
US1988444A
Cited
US2078909A
Cited
US2039885A
Cited
US2290875A
Cited
US2385131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |