US2929259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit
Assignee: Admiral Corp
•
Filing: 1956-03-19
•
Granted: 1960-03-22
•
Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 James H Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/30; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2320628A
Cited
US2453251A
Cited
US2730671A
Cited
US2710935A
Cited
US2637835A
Cited
US2757550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |