US2873610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuner and control
Assignee: GTE Sylvania Inc
•
Filing: 1954-12-15
•
Granted: 1959-02-17
•
Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Theo W Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:53
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/06; H03J1/08; Y; Y10; Y10S; Y10S116/00; Y10S116/29; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22574E
Cited
US765774A
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US1643782A
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US2411619A
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US2584155A
Cited
US2579659A
Cited
US2604791A
Cited
US2613540A
Cited
US2773390A
Cited
US2756599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |