US2624401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Falling film evaporator with subjacent separating chamber
Assignee: ZAREMBA CO
•
Filing: 1949-02-16
•
Granted: 1953-01-06
•
Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Earl A Schilt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:25
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/06; B01D1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US466862A
Cited
US470060A
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US1005553A
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US1079474A
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US1246824A
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US1735980A
Cited
US2150860A
Cited
US2257531A
Cited
US2494767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |