US2769082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Westinghouse Electric Corp
•
Filing: 1953-03-30
•
Granted: 1956-10-30
•
Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Steiner
- 👤 Edward L Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/30; F21S; F21S8/00; F21S8/03; F21S8/033; F21S8/04; F21V17/00; F21V17/10; F21V17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US422592A
Cited
US1641681A
Cited
US1960854A
Cited
US2011868A
Cited
US2180982A
Cited
US2279595A
Cited
US2327820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |