US2865445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator
Assignee: Individual
•
Filing: 1954-10-14
•
Granted: 1958-12-23
•
Expires: 1974-10-14
Abstract
No abstract record available.
Inventors
- 👤 Buchler Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:20
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/08; B01D3/085; B01D3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US440752A
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US980444A
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US1116196A
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US1530140A
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US1597809A
Cited
US1726751A
Cited
US1989255A
Cited
US1997937A
Cited
US2156628A
Cited
US2475834A
Cited
US2551360A
Cited
US2649314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |