US2624019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp or similar article
Assignee: General Electric Co
•
Filing: 1950-03-31
•
Granted: 1952-12-30
•
Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Leroy G Leighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:58
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1270856A
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US1293781A
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US1670716A
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US1771957A
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US1899587A
Cited
US1955510A
Cited
US2142104A
Cited
US2117039A
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US2232816A
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US2288499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |