US2953723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device
Assignee: Texas Instruments Inc
•
Filing: 1957-05-08
•
Granted: 1960-09-20
•
Expires: 1977-05-08
Abstract
No abstract record available.
Inventors
- 👤 Charles D Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:15
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01H50/36; H01H50/40; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/142; H01H71/40; H01H71/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1605275A
Cited
US1901708A
Cited
US1985033A
Cited
US2347018A
Cited
GB578611A
Cited
US2712043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |