US2924732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Area-type light source
Assignee: Westinghouse Electric Corp
•
Filing: 1957-07-05
•
Granted: 1960-02-09
•
Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Lehmann Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
H; H05; H05B; H05B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733367A
Cited
US2413940A
Cited
US2424454A
Cited
US2494883A
Cited
US2624857A
Cited
US2730644A
Cited
US2783407A
Cited
US2692349A
Cited
US2650310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |