Patent US2454670A successfully refreshed from Google Patents.
US2454670A
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US
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Portable fluorescent lamp control system
Assignee: Paramount Industries Inc
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Filing: 1947-07-05
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Granted: 1948-11-23
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Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 Pollack Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:31
CPC Classifications
F; F21; F21V; F21V23/00; F21L; F21L2/00; F21L4/00; H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/18; Y; Y10; Y10S; Y10S315/00; Y10S315/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |