Patent US2070818A successfully refreshed from Google Patents.
US2070818A
Expired / Lapsed
US
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Lifesaving jacket with automatic electric lighting unit
Assignee: WINCKLER ENGINEERING LAB Inc
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Filing: 1934-02-09
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Granted: 1937-02-16
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Expires: 1954-02-09
Abstract
No abstract record available.
Inventors
- 👤 Gunnar A F Winckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:07
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/32; H01M6/34; B; B63; B63C; B63C9/00; B63C9/08; B63C9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-02-16 | 1940-08-17 | 1941-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-16 | 1944-08-17 | 1945-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-16 | 1948-08-17 | 1949-02-16 | $7700.00 | Window Closed / Lapsed |