Patent US2549063A successfully refreshed from Google Patents.
US2549063A
Expired / Lapsed
US
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Liquid separation method and apparatus
Assignee: Bowser Inc
•
Filing: 1945-04-16
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Granted: 1951-04-17
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Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Haven La Vern H De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:00
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE METHOD OF TREATING AN EMULSION COMPRISING THE STEPS OF PASSING THE EMULSION THROUGH A CAKE OF FILTER AID MATERIAL, SEPARATING THE EMULSION LIQUIDS, AND CONTINUOUSLY CIRCULATING A POR-
Claim 2
Independent Claim
29 words
THE METHOD OF TREATING AN EMULSION COMPRISING THE STEPS OF PASSING THE EMULSION THROUGH A CAKE OF FILTER AID MATERIAL, SEPARATING THE EMULSION LIQUIDS, AND CONTINUOUSLY CIRCULATING A POR-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |