US2472597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lamp and assembly therefor
Assignee: Individual
•
Filing: 1945-02-10
•
Granted: 1949-06-07
•
Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Milton C Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:16
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; H; H01; H01R; H01R33/00; H01R33/05; H01R33/06; H01R33/08; F21W; F21W2121/00; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33; F21Y2113/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1799341A
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US1800037A
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US1786420A
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US1935729A
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US2004564A
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US2255431A
Cited
US2309676A
Cited
US2304594A
Cited
US2364889A
Cited
US2350462A
Cited
US2365812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |