US2822444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashers
Assignee: Signal Stat Corp
•
Filing: 1956-06-06
•
Granted: 1958-02-04
•
Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Colombo George
- 👤 Orlov Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE475870C
Cited
US2103276A
Cited
US2103277A
Cited
US2354635A
Cited
US2639345A
Cited
US2715187A
Cited
US2706228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |