US2965778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure electric discharge lamps
Assignee: The General Electric Company PLC
•
Filing: 1958-05-15
•
Granted: 1960-12-20
•
Expires: 1978-05-15
Abstract
No abstract record available.
Inventors
- 👤 Jenkins Henry Grainger
- 👤 Williams Charles Edington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:07
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J61/33; H01J61/70; H01J61/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2116429A
Cited
US2249610A
Cited
US2249672A
Cited
US2164183A
Cited
US2433404A
Cited
US2433218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |