Patent US2694772A successfully refreshed from Google Patents.
US2694772A
Expired / Lapsed
US
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Flashlight with hermetically sealed casing
Assignee: Individual
•
Filing: 1949-12-14
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Granted: 1954-11-16
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Expires: 1969-12-14
Abstract
No abstract record available.
Inventors
- 👤 Gelardin Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:32
CPC Classifications
F; F21; F21L; F21L4/00; E; E05; E05B; E05B19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932841A
Cited
US1090624A
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GB418471A
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US2234972A
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US2019884A
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US2166282A
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US2387144A
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GB561575A
Cited
US2431518A
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US2483820A
Cited
US2483819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |