US2858901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorption process
Assignee: Texaco Inc
•
Filing: 1955-07-11
•
Granted: 1958-11-04
•
Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Ben F Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:08
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/06; C10G25/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A MIXTURE OF FRACTIONATING A VAPORIZED HYDROCARBON MIXTURE CONTAINING STRAIGHT CHAIN HYDROCARBONS AND NONSTRAIGHT CHAIN HYDROCARBONS WHICH COMPRISES CONTACTING SAID VAPORIZED MIXTURE WITH A SLURRY COMPRISING A RELATIVELY HIGH BOILING, INERT CARRIER LIQUID AND A SOLID, PARTICLE FORM CALCIUM ALUMINO-SILICATE ADSORBENT, SAID CARRIER LIQUID HAVING A BOILING POINT HIGHER THAN THE BOILING POINT OF THE STRAIGHT CHAIN HYDROCARBONS TO BE ADSORBED AND BEING A SELECTIVE SOLVENT FOR THE STRAIGHT CHAIN HYDROCARBONS TO BE ADSORBED FROM THE FEED MIXTURE UNDERGOING FRACTIONATION AS WELL AS SUBSTANTIALLY UNADSORBED BY SAID ADSORBENT, SAID CALCIUM ALUMINOSILICATE ADSORBENT PREFERENTIALLY ADSORBING THE STRAIGHT
Claim 2
Dependent Claim
96 words
A MIXTURE OF FRACTIONATING A VAPORIZED HYDROCARBON MIXTURE CONTAINING STRAIGHT CHAIN HYDROCARBONS AND NONSTRAIGHT CHAIN HYDROCARBONS WHICH COMPRISES CONTACTING SAID VAPORIZED MIXTURE WITH A SLURRY COMPRISING A RELATIVELY HIGH BOILING, INERT CARRIER LIQUID AND A SOLID, PARTICLE FORM CALCIUM ALUMINO-SILICATE ADSORBENT, SAID CARRIER LIQUID HAVING A BOILING POINT HIGHER THAN THE BOILING POINT OF THE STRAIGHT CHAIN HYDROCARBONS TO BE ADSORBED AND BEING A SELECTIVE SOLVENT FOR THE STRAIGHT CHAIN HYDROCARBONS TO BE ADSORBED FROM THE FEED MIXTURE UNDERGOING FRACTIONATION AS WELL AS SUBSTANTIALLY UNADSORBED BY SAID ADSORBENT, SAID CALCIUM ALUMINOSILICATE ADSORBENT PREFERENTIALLY ADSORBING THE STRAIGHT
References Cited (Backward Citations)
US214412A
Cited
US1234600A
Cited
US1429856A
Cited
US2306610A
Cited
US2768942A
Cited
US2760598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |