Patent US3274103A successfully refreshed from Google Patents.
US3274103A
Expired / Lapsed
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Filtration
Assignee: Phillips Petroleum Co
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Filing: 1963-04-15
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Granted: 1966-09-20
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Loyd W Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:42
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D17/00; B01D17/02; B01D17/0202; B01D17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A FILTRATION PROCESS WHICH COMPRISES COATING A FILTERWITH A MIXTURE OF (1) A SOLID POLYMER OF 1-OLEFINS CONTAINING FROM 2 TO 8 CARBON ATOMS PER MOLECULE AND (2) A FILTER AID MATERIAL, AND PASSING THROUGH THE RESULTING COATED FILTER A FLUID MIXTURE CONTAINING AT LEAST ONE LIQUID CONSTITUENT WHICH IS IMMISCIBLE WITH AT LEAST ONE OF THE OTHER CONSTITUENTS, WHEREBY SAID ONE LIQUID CONSTITUENT IS SEPARATED FROM SAID AT LEAST ONE OTHER CONSTITUENT.
Claim 2
Dependent Claim
73 words
A FILTRATION PROCESS WHICH COMPRISES COATING A FILTERWITH A MIXTURE OF (1) A SOLID POLYMER OF 1-OLEFINS CONTAINING FROM 2 TO 8 CARBON ATOMS PER MOLECULE AND (2) A FILTER AID MATERIAL, AND PASSING THROUGH THE RESULTING COATED FILTER A FLUID MIXTURE CONTAINING AT LEAST ONE LIQUID CONSTITUENT WHICH IS IMMISCIBLE WITH AT LEAST ONE OF THE OTHER CONSTITUENTS, WHEREBY SAID ONE LIQUID CONSTITUENT IS SEPARATED FROM SAID AT LEAST ONE OTHER CONSTITUENT.
References Cited (Backward Citations)
US2993599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |