US2286789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral high pressure lamp and starting circuit therefor
Assignee: Westinghouse Electric Corp
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Filing: 1940-05-01
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Granted: 1942-06-16
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Expires: 1960-05-01
Abstract
No abstract record available.
Inventors
- 👤 Dench Edward Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/54; H05; H05B; H05B41/00; H05B41/02; H05B41/04; H05B41/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-06-15 | 1945-12-15 | 1946-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-15 | 1949-12-15 | 1950-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-15 | 1953-12-15 | 1954-06-16 | $7700.00 | Window Closed / Lapsed |