US2763774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Westinghouse Electric Corp
•
Filing: 1953-03-30
•
Granted: 1956-09-18
•
Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Edward L Beach
- 👤 Merle E Keck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:18
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/30; Y; Y10; Y10T; Y10T403/00; Y10T403/20; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32377
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |