Patent US2103179A successfully refreshed from Google Patents.
US2802129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure fluorescent and discharge lamps
Assignee: Westinghouse Electric Corp
•
Filing: 1952-08-21
•
Granted: 1957-08-06
•
Expires: 1972-08-21
Abstract
No abstract record available.
Inventors
- 👤 Meister George
- 👤 Thomas H Heine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:43
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; H01J61/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1726107A
Cited
US1858698A
Cited
US2363531A
Cited
US2346522A
Cited
US2622221A
Cited
US2473642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |