US3299163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of contaminants from unsaturated hydrocarbon-containing mixtures
Assignee: Phillips Petroleum Co
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Filing: 1965-08-30
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Granted: 1967-01-17
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Zelinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:50
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/14833; C07C7/1485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR SEPARATING POLYENES AND ACETYLENIC COMPOUNDS FROM A CONJUGATED DIENE MIXTURE CONTAINING SAME WHICH COMPRISES CONTACTING SAID MIXTURE AT A TEMPERATURE ABOUT 100*C. WITH AN ALKALI METAL HYDROXIDE SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENE AND POLYALKYLENE GLYCOLS, PRIMARY, SECONDARY AND POLYAMINES HAVING FROM 2-20 CARBON ATOMS PER MOLECULE, AND MIXTURES OF THESE.
Claim 2
Dependent Claim
59 words
A PROCESS FOR SEPARATING POLYENES AND ACETYLENIC COMPOUNDS FROM A CONJUGATED DIENE MIXTURE CONTAINING SAME WHICH COMPRISES CONTACTING SAID MIXTURE AT A TEMPERATURE ABOUT 100*C. WITH AN ALKALI METAL HYDROXIDE SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYLENE AND POLYALKYLENE GLYCOLS, PRIMARY, SECONDARY AND POLYAMINES HAVING FROM 2-20 CARBON ATOMS PER MOLECULE, AND MIXTURES OF THESE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |