Patent US2821089A successfully refreshed from Google Patents.
US40662A
Expired / Lapsed
US
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Improved apparatus for condensing, evaporating, and cooling
Assignee: —
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Filing: —
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Granted: 1863-11-17
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Expires: 1880-11-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:33
CPC Classifications
A; A23; A23C; A23C1/00; A23C1/12; B; B01; B01D; B01D1/00; B01D1/04
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) | 1866-11-16 | 1867-05-18 | 1867-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1870-11-16 | 1871-05-18 | 1871-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1874-11-16 | 1875-05-18 | 1875-11-17 | $7700.00 | Window Closed / Lapsed |