US2912568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Westinghouse Electric Corp
•
Filing: 1955-06-03
•
Granted: 1959-11-10
•
Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
- 👤 Frederic C Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/107; F21V17/18; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0926; Y10T292/0928; Y10T292/0934
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1029629A
Cited
US1485398A
Cited
US2302661A
Cited
US2321099A
Cited
US2394395A
Cited
US2504716A
Cited
US2440186A
Cited
US2566015A
Cited
US2684498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |