US1627343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for treating liquids with purifying and decolorizing agents
Assignee: Individual
•
Filing: 1923-05-25
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Granted: 1927-05-03
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Expires: 1943-05-25
Abstract
No abstract record available.
Inventors
- 👤 Sauer Johan Nicolaas Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:29
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/01; B; B01; B01D; B01D15/00; B01D15/02; B01D29/00; B01D29/39; B01D29/41; B01D29/44; B01D29/48; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/66; B01D29/661; B01D35/00; B01D35/18; B01D37/00; B01D37/02; B01D15/08; B01D15/10; B01D15/18; B01D15/1892
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) | 1930-05-02 | 1930-11-01 | 1931-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-02 | 1934-11-01 | 1935-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-02 | 1938-11-01 | 1939-05-03 | $7700.00 | Window Closed / Lapsed |