Patent US2738370A successfully refreshed from Google Patents.
US2738370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alicyclic glycols
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-07-11
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Granted: 1956-03-13
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Expires: 1971-07-11
Abstract
No abstract record available.
Inventors
- 👤 John H Staib
- 👤 Stewart Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:23
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR THE PREPARATION OF GLYCOLS FROM SUBSTITUTED ALICYCLIC COMPOUNDS HAVING TWO NON-CONJUGATED OLEFINIC LINKAGES ONE OF WHICH LINKAGES IS IN A RING, WHICH COMPRISES REACTING SAID COMPOUNDS WITH CARBON MONOXIDE, HYDROGEN AND A COBALT CARBONYLATION CATALYST IN THE PRESENCE OF A HYDROCARBON SOLVENT, THE RATIO OF SAID SOLVENT TO SAID DIOLEFIN COMPOUND BEING AT LEAST 2/1, MAINTAINING SAID REACTION MIXTURE AT ELEVATED TEMPERATURES OF FROM ABOUT 225* TO ABOUT 375* F. AND PRESSURES OF FROM ABOUT 2,000 TO ABOUT 4,000 P. S. I. G. AND IN CONTACT FOR A PERIOD OF TIME, IN THE RANGE OF ABOUT 0.5 TO ABOUT 10 HOURS, CONDUCIVE TO FORM A DIALDEHYDE CONVERSION PROD-
Claim 2
Dependent Claim
111 words
A PROCESS FOR THE PREPARATION OF GLYCOLS FROM SUBSTITUTED ALICYCLIC COMPOUNDS HAVING TWO NON-CONJUGATED OLEFINIC LINKAGES ONE OF WHICH LINKAGES IS IN A RING, WHICH COMPRISES REACTING SAID COMPOUNDS WITH CARBON MONOXIDE, HYDROGEN AND A COBALT CARBONYLATION CATALYST IN THE PRESENCE OF A HYDROCARBON SOLVENT, THE RATIO OF SAID SOLVENT TO SAID DIOLEFIN COMPOUND BEING AT LEAST 2/1, MAINTAINING SAID REACTION MIXTURE AT ELEVATED TEMPERATURES OF FROM ABOUT 225* TO ABOUT 375* F. AND PRESSURES OF FROM ABOUT 2,000 TO ABOUT 4,000 P. S. I. G. AND IN CONTACT FOR A PERIOD OF TIME, IN THE RANGE OF ABOUT 0.5 TO ABOUT 10 HOURS, CONDUCIVE TO FORM A DIALDEHYDE CONVERSION PROD-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |