US2529310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid-treating a contaminated waterimmiscible bead-forming oil
Assignee: Standard Oil Development Co
•
Filing: 1948-10-30
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Granted: 1950-11-07
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Expires: 1968-10-30
Abstract
No abstract record available.
Inventors
- 👤 Roger W Richardson
- 👤 Jr Charles N Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:32
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/152; C01B33/154; C01B33/1543; B; B01; B01J; B01J21/00; B01J21/12; B01J21/20; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN A PROCESS FOR FORMING SPHERICAL INORGANIC GELS WHEREIN DROPLETS OF A HYDROSOL ARE SET TO A GEL IN A WATER-IMMISCIBLE LIQUID IN A CONTACT ZONE AND THE WATER-IMMISCIBLE LIQUID BECOMES CONTAMINATED AFTER CONTINOUS USE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING AT LEAST A PORTION OF SAID WATER-IMMISCIBLE LIQUID FROM SAID CONTACT
Claim 2
Dependent Claim
51 words
IN A PROCESS FOR FORMING SPHERICAL INORGANIC GELS WHEREIN DROPLETS OF A HYDROSOL ARE SET TO A GEL IN A WATER-IMMISCIBLE LIQUID IN A CONTACT ZONE AND THE WATER-IMMISCIBLE LIQUID BECOMES CONTAMINATED AFTER CONTINOUS USE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING AT LEAST A PORTION OF SAID WATER-IMMISCIBLE LIQUID FROM SAID CONTACT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |