US2544708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent fixture having swingable members carrying the lamps
Assignee: Individual
•
Filing: 1946-10-08
•
Granted: 1951-03-13
•
Expires: 1966-10-08
Abstract
No abstract record available.
Inventors
- 👤 Margolis Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/02; F21V11/04; F21V19/00; F21V19/04; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1236966A
Cited
US1902890A
Cited
US2033235A
Cited
GB508420A
Cited
US2291681A
Cited
US2413666A
Cited
US2463013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |