Patent US2805556A successfully refreshed from Google Patents.
US2805556A
Expired / Lapsed
US
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Pocket liquid cooling device
Assignee: Individual
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Filing: 1955-11-22
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Granted: 1957-09-10
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Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Wang Wensan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:20
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/107; F25D2331/00; F25D2331/80; F25D2331/805; F25D2331/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |