Patent US2774013A successfully refreshed from Google Patents.
US2774013A
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US
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Electric discharge lamp
Assignee: General Electric Co
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Filing: 1950-03-23
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Granted: 1956-12-11
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Willoughby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/84; H01J61/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2166951A
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US2020736A
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US2054846A
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US2168861A
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US2116429A
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US2176134A
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US2159824A
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US2241968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |