US2586265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trouble light for illuminating work areas and projecting warning beams
Assignee: Individual
•
Filing: 1947-09-25
•
Granted: 1952-02-19
•
Expires: 1967-09-25
Abstract
No abstract record available.
Inventors
- 👤 Clyde C Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:04
CPC Classifications
F; F21; F21L; F21L4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1121293A
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FR553030A
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US1641880A
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US1875956A
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US1932143A
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US2001363A
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US1974294A
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US2039205A
Cited
US2241741A
Cited
US2215829A
Cited
US2374161A
Cited
US2413628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |