US2901669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Daytime off solar cell flasher circuit
Assignee: Servel Inc
•
Filing: 1958-06-06
•
Granted: 1959-08-25
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:18
CPC Classifications
H; H05; H05B; H05B39/00; H05B39/09; Y; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2825003A
Cited
US2788449A
Cited
US2773219A
Cited
US2840727A
Cited
US2829257A
Cited
US2833938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |