US2462243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: Westinghouse Electric Corp
•
Filing: 1944-07-18
•
Granted: 1949-02-22
•
Expires: 1964-07-18
Abstract
No abstract record available.
Inventors
- 👤 Frederic C Winkler
- 👤 Burton A Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:02
CPC Classifications
F; F21; F21S; F21S8/00; F21V; F21V17/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US602966A
Cited
US1990109A
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US2153366A
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US2308986A
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US2313983A
Cited
US2295788A
Cited
US2270814A
Cited
US2318536A
Cited
US2392202A
Cited
US2376801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |