US3068291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of epoxides
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-08-18
•
Granted: 1962-12-11
•
Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Emanuel M Amir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:17
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/02; C07C45/00; C07C45/56; C07C45/57; C07C45/58; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD FOR THE CONVERSION OF 2-METHYL-2,3-EPOXYPENTANE INTO A MIXTURE OF THE CORRESPONDING DIOLEFINID, ALDEHYDIC AND KETONIC PRODUCTS WHICH COMPRISES THE STEPS OF CONTACTING 2-METHYL-2,3-EPOXYPENTANE WITH A CALCINED DIATOMACEOUS EARTH CATALYST AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70* TO 600*F. AND THEREAFTER RECOVERING THE PRODUCTS RESULTING FROM SAID CONTACTING STEP, SAID DIATOMACEOUS EARTH HAVING BEEN CALCINED AT A TEMPERATURE IN EXCESS OF ABOUT 600*F.
Claim 2
Independent Claim
66 words
A METHOD FOR THE CONVERSION OF 2-METHYL-2,3-EPOXYPENTANE INTO A MIXTURE OF THE CORRESPONDING DIOLEFINID, ALDEHYDIC AND KETONIC PRODUCTS WHICH COMPRISES THE STEPS OF CONTACTING 2-METHYL-2,3-EPOXYPENTANE WITH A CALCINED DIATOMACEOUS EARTH CATALYST AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70* TO 600*F. AND THEREAFTER RECOVERING THE PRODUCTS RESULTING FROM SAID CONTACTING STEP, SAID DIATOMACEOUS EARTH HAVING BEEN CALCINED AT A TEMPERATURE IN EXCESS OF ABOUT 600*F.
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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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |