US2944257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna tuning device for automobile radios
Assignee: ST JOE MACHINES Inc
•
Filing: 1955-07-05
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Granted: 1960-07-05
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 Donald J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:48
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/12; F02D1/122; F02D1/127; F02M; F02M59/00; F02M59/20; F02M59/32; H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |