US2466053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting relay for fluorescent lamps
Assignee: Brush Development Co
•
Filing: 1945-04-30
•
Granted: 1949-04-05
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Harry B Shaper
- 👤 Clifford V Franks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; Y; Y10; Y10S; Y10S315/00; Y10S315/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212427A
Cited
US2298935A
Cited
US2299499A
Cited
US2353660A
Cited
US2394436A
Cited
US2399557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |