US3013169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High output fluorescent lamp
Assignee: GTE Sylvania Inc
•
Filing: 1956-06-27
•
Granted: 1961-12-12
•
Expires: 1976-06-27
Abstract
No abstract record available.
Inventors
- 👤 Gungle Warren Calvin
- 👤 John F Waymouth
- 👤 Bitter Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:58
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/025; H01J61/04; H01J61/045; H01J61/70; H01J61/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051623A
Cited
US2087735A
Cited
US2433404A
Cited
US2549355A
Cited
US2802129A
Cited
US2826710A
Cited
US2777082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |