US3273315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of organic compounds
Assignee: BP PLC
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Filing: 1963-09-12
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Granted: 1966-09-20
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Mortimer John Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:20
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/286; B01J20/02; B01J20/10; B01J20/12; B01J20/14; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; B01J20/3242; B01J20/3244; B01J20/3246; B01J2220/00; B01J2220/50; B01J2220/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ACTIVE CONSTITUENT FOR USE IN THE RESOLUTION OF A MIXTURE OF ORGANIC COMPOUNDS BY A GAS CHROMATOGRAPHIC PROCESS, THE CONSTITUENT COMPRISING A MIXTURE SUPPORTED ON AN INERT SOLID, SAID MIXTURE BEING (A) ORGANO-CLAY COMPOUND IN WHICH AT LEAST SOME OF THE REPLACEABLE INORGANIC CATIONS PRESENT IN SAID CLAY COMPOUND CAPABLE OF INTER LAMELLAR EXPANSION ARE REPLACED BY ORGANIC CATIONS, THE ORGANO-CLAY COMPOUND BEING IN PARTICULATE FORM, AND (B) A MODIFYING AGENT THEREFOR, THE MODIFYING AGENT BEING A SUBSTANCE OF LOW VOLATILITY WHICH AT PROCESS OPERATING TEMPERATURES WILL BE A LIQUID WHEREBY NO SUBSTANTIAL AMOUNT OF SAID LIQUID IS VOLATILISED IN USE AT PROCESS OPERATING TEMPERATURES, WHICH IS A SOLVENT FOR AT LEAST ONE OF THE COMPONENTS OF SAID MIXTURE OF ORGANIC COMPOUNDS TO BE RESOLVED AND WHICH DOES NOT REACT CHEMICALLY WITH THE ORGANO-CLAY COMPOUND AND WITH THE COMPONENTS OF THE MIXTURE TO BE RESOLVED.
Claim 2
Dependent Claim
146 words
AN ACTIVE CONSTITUENT FOR USE IN THE RESOLUTION OF A MIXTURE OF ORGANIC COMPOUNDS BY A GAS CHROMATOGRAPHIC PROCESS, THE CONSTITUENT COMPRISING A MIXTURE SUPPORTED ON AN INERT SOLID, SAID MIXTURE BEING (A) ORGANO-CLAY COMPOUND IN WHICH AT LEAST SOME OF THE REPLACEABLE INORGANIC CATIONS PRESENT IN SAID CLAY COMPOUND CAPABLE OF INTER LAMELLAR EXPANSION ARE REPLACED BY ORGANIC CATIONS, THE ORGANO-CLAY COMPOUND BEING IN PARTICULATE FORM, AND (B) A MODIFYING AGENT THEREFOR, THE MODIFYING AGENT BEING A SUBSTANCE OF LOW VOLATILITY WHICH AT PROCESS OPERATING TEMPERATURES WILL BE A LIQUID WHEREBY NO SUBSTANTIAL AMOUNT OF SAID LIQUID IS VOLATILISED IN USE AT PROCESS OPERATING TEMPERATURES, WHICH IS A SOLVENT FOR AT LEAST ONE OF THE COMPONENTS OF SAID MIXTURE OF ORGANIC COMPOUNDS TO BE RESOLVED AND WHICH DOES NOT REACT CHEMICALLY WITH THE ORGANO-CLAY COMPOUND AND WITH THE COMPONENTS OF THE MIXTURE TO BE RESOLVED.
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) | 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 |