US2673943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge lamp flashing circuit
Assignee: General Electric Co
•
Filing: 1950-08-21
•
Granted: 1954-03-30
•
Expires: 1970-08-21
Abstract
No abstract record available.
Inventors
- 👤 Anthony D Cooper
- 👤 Evan H Nelson
- 👤 Anthony H Willoughby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:09
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2178423A
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US1977231A
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US2082939A
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US2399222A
Cited
US2456870A
Cited
US2451830A
Cited
US2531220A
Cited
US2509005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |