US2926238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: Westinghouse Electric Corp
•
Filing: 1954-08-31
•
Granted: 1960-02-23
•
Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 Melvin R Anderson
- 👤 Leonard H Seeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:13
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/18; F21V15/00; F21V15/01; F21V17/107; F21V17/16; F21V23/00; F21V23/02; F21V23/026; F21V31/00; F21V5/00; F21V5/02; F21V7/00; F21V7/005; F21V17/104; F21W; F21W2131/00; F21W2131/10; F21W2131/101; F21W2131/103; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291495A
Cited
US2329268A
Cited
US2348930A
Cited
US2565741A
Cited
US2474327A
Cited
US2567014A
Cited
US2663794A
Cited
US2717307A
Cited
US2791681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |