Patent US1602014A successfully refreshed from Google Patents.
US1602014A
Expired / Lapsed
US
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Process and apparatus for separating substances from liquids
Assignee: Gilchrist & Co
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Filing: 1925-01-05
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Granted: 1926-10-05
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Expires: 1945-01-05
Abstract
No abstract record available.
Inventors
- 👤 Walton C Graham
- 👤 Horace S Rumsey
- 👤 Ashur U Wetherbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:58
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/10; B01D21/12; B01D21/14; B01D21/003; B01D21/0036; B01D21/18; B01D21/186; B01D21/24; B01D21/2433; B01D21/245
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) | 1929-10-04 | 1930-04-05 | 1930-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-04 | 1934-04-05 | 1934-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-04 | 1938-04-05 | 1938-10-05 | $7700.00 | Window Closed / Lapsed |