US2930934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge lamp
Assignee: Westinghouse Electric Corp
•
Filing: 1958-02-12
•
Granted: 1960-03-29
•
Expires: 1978-02-12
Abstract
No abstract record available.
Inventors
- 👤 Albert W Wainio
- 👤 Thomas H Heine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:06
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/54; H01J61/545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1860210A
Cited
US1925648A
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US2097261A
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US2304768A
Cited
US2085561A
Cited
US2189508A
Cited
US2246339A
Cited
US2291926A
Cited
US2404002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |