US1526596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating liquids with gases
Assignee: Individual
•
Filing: 1922-06-09
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Granted: 1925-02-17
•
Expires: 1942-06-09
Abstract
No abstract record available.
Inventors
- 👤 William E Greenawalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:50
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F27/00; B01F27/80; B01F27/81; B01F23/23311; B01F23/2335; B01F23/23352; B01F23/2336; B01F23/23362; B01F27/05; B01F27/11; B01F27/111
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) | 1928-02-17 | 1928-08-18 | 1929-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-02-17 | 1932-08-18 | 1933-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-02-17 | 1936-08-18 | 1937-02-17 | $7700.00 | Window Closed / Lapsed |