US2537259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine driven vapor compression still
Assignee: CLEAVERBROOKS Co
•
Filing: 1945-05-07
•
Granted: 1951-01-09
•
Expires: 1965-05-07
Abstract
No abstract record available.
Inventors
- 👤 John C Cleaver
- 👤 Douglas M Mcbean
- 👤 Resek Jules Verne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:28
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/28; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US849579A
Cited
DE270471C
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US1466670A
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US1966938A
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US2324663A
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US2375640A
Cited
US2372846A
Cited
US2389789A
Cited
US2389064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |