US2885336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cation exchange material and its preparation
Assignee: KERR MC GEE OIL IND Inc
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Filing: 1956-10-23
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Granted: 1959-05-05
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Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 Mayer B Goren
- 👤 Ira D Elkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:17
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/22; B01J39/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS FOR PREPARING AN ION EXCHANGE MATERIAL WHICH COMPRISES INCORPORATING A HYDROCARBON OILY SUBSTANCE CONTAINING AN APPRECIABLE AMOUNT OF CYCLIC HYDROCARBONS WITH ASPHALTIC BITUMINOUS MATERIAL IN AN AMOUNT FROM 5-80% BY WEIGHT OF THE RESULTING MIXTURE, CONDENSING THE OILY SUBSTANCE BY SUBJECTING THE OILY SUBSTANCE TO A CONDENSATION REACTION, AND THEN SULFONATING THE ASPHALTIC BITUMINOUS MATERIAL HAVING OILY SUBSTANCE INCORPORATED THEREIN.
Claim 2
Dependent Claim
62 words
A PROCESS FOR PREPARING AN ION EXCHANGE MATERIAL WHICH COMPRISES INCORPORATING A HYDROCARBON OILY SUBSTANCE CONTAINING AN APPRECIABLE AMOUNT OF CYCLIC HYDROCARBONS WITH ASPHALTIC BITUMINOUS MATERIAL IN AN AMOUNT FROM 5-80% BY WEIGHT OF THE RESULTING MIXTURE, CONDENSING THE OILY SUBSTANCE BY SUBJECTING THE OILY SUBSTANCE TO A CONDENSATION REACTION, AND THEN SULFONATING THE ASPHALTIC BITUMINOUS MATERIAL HAVING OILY SUBSTANCE INCORPORATED THEREIN.
References Cited (Backward Citations)
US2748057A
Cited
US2774724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |