Patent US2233189A successfully refreshed from Google Patents.
US2233189A
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US
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Separating and cooling apparatus
Assignee: Individual
•
Filing: 1936-09-21
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Granted: 1941-02-25
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Expires: 1956-09-21
Abstract
No abstract record available.
Inventors
- 👤 Altenkirch Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:14
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0438; B01D53/26; B01D53/261; B01D2251/00; B01D2251/30; B01D2251/304; B01D2251/306; B01D2253/00; B01D2253/10; B01D2253/106; B01D2257/00; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; B01D2259/4009; B01D2259/65; B01D2259/652; B01D53/0454; F24F2003/144
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) | 1944-02-25 | 1944-08-26 | 1945-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-25 | 1948-08-26 | 1949-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-25 | 1952-08-26 | 1953-02-25 | $7700.00 | Window Closed / Lapsed |