US2508337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starter for electric gaseous discharge device
Assignee: GTE Sylvania Inc
•
Filing: 1946-08-13
•
Granted: 1950-05-16
•
Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 George W Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; H05B41/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212427A
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US2313379A
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US2352940A
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US2379772A
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US2425038A
Cited
US2425668A
Cited
US2392282A
Cited
US2451810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |