Patent US2501375A successfully refreshed from Google Patents.
US2501375A
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US
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Electric discharge lamp
Assignee: General Electric Co
•
Filing: 1946-02-25
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Granted: 1950-03-21
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Expires: 1966-02-25
Abstract
No abstract record available.
Inventors
- 👤 Breadner Robert Leonard
- 👤 Jenkins Henry Grainger
- 👤 Simms Charles Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:43
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/96; H01J61/02; H01J61/04; H01J61/10; H01J61/103; H01J61/30; H01J61/32; H01J61/327
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1984215A
Cited
US1870147A
Cited
US2272513A
Cited
US2205672A
Cited
US2316348A
Cited
US2279635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |