US2946880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: Westinghouse Electric Corp
•
Filing: 1954-08-31
•
Granted: 1960-07-26
•
Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 George J Picha
- 👤 Frederic C Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:39
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21V; F21V17/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2337794A
Cited
US2320829A
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US2336414A
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US2565741A
Cited
US2474327A
Cited
US2490191A
Cited
US2567014A
Cited
US2663794A
Cited
US2579015A
Cited
US2566845A
Cited
US2724047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |