US2449178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Step-by-step automatic tuning control
Assignee: Collins Radio Co
•
Filing: 1947-03-06
•
Granted: 1948-09-14
•
Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 George L Sansbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/18; H02; H02K; H02K7/00; H02K7/06; H02K7/065; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2362690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |