US3021468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable flashlight battery and circuit for recharging same
Assignee: Individual
•
Filing: 1956-08-20
•
Granted: 1962-02-13
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Reich Robert Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:07
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/08; F21L4/085; H; H02; H02J; H02J4/00; H02J4/20; H02J4/25; H02J7/00; H02J7/02; H02J7/50; Y; Y10; Y10S; Y10S320/00; Y10S320/22; Y10S320/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL73496C
Cited
US2072278A
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US2097014A
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US2413033A
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US2498814A
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US2444745A
Cited
US2518039A
Cited
US2642520A
Cited
US2628339A
Cited
US2594801A
Cited
US2709238A
Cited
US2880306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |