US2461634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashlight
Assignee: Bright Star Battery Co
•
Filing: 1945-12-15
•
Granted: 1949-02-15
•
Expires: 1965-12-15
Abstract
No abstract record available.
Inventors
- 👤 Doose Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:25
CPC Classifications
F; F21; F21L; F21L4/00; F21V; F21V23/00; F21V23/04; F21V23/0414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB200954A
Cited
US1756733A
Cited
US2001363A
Cited
US2298042A
Cited
US2309402A
Cited
US2408393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |