US2935637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lamp
Assignee: Individual
•
Filing: 1957-03-05
•
Granted: 1960-05-03
•
Expires: 1977-03-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Cortese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:38
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/04; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/067; H01J61/0672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2249672A
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US2156068A
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US2258158A
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US2363531A
Cited
US2314134A
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US2701849A
Cited
US2491425A
Cited
US2530394A
Cited
US2774918A
Cited
US2761086A
Cited
US2857542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |