Patent US2833787A successfully refreshed from Google Patents.
US2833787A
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US
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Epoxidation process using hydrogen peroxide and an acid salt of a heavy metal peracid
Assignee: Shell Development Co
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Filing: 1955-03-15
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Granted: 1958-05-06
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Expires: 1975-03-15
Abstract
No abstract record available.
Inventors
- 👤 George J Carlson
- 👤 John R Skinner
- 👤 Curtis W Smith
- 👤 Jr Charles H Wilcoxen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:06
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/14; C07D301/00; C07D301/02; C07D301/03; C07D301/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR PRODUCING AN EPOXIDE WHICH COMPRISES REACTING A NON-CONJUGATED ETHYLENIC COMPOUND CONTAINING NOT MORE THAN TWO ETHYLENIC GROUPS AND HAVING AT LEAST ONE CARBON ATOM BETWEEN ANY TWO SUCH ETHYLENIC GROUPS WITH HYDROGEN PEROXIDE IN THE PRESENCE OF AN ACID SALT OF AN UNSTABLE PERACID-FORMING ACID OF A HEAVY METAL OF THE GROUP CONSISTING OF TUNGSTEN AND MOLYBDENUM AT A PH BETWEEN 3.0 AND 7.0.
Claim 2
Dependent Claim
67 words
A PROCESS FOR PRODUCING AN EPOXIDE WHICH COMPRISES REACTING A NON-CONJUGATED ETHYLENIC COMPOUND CONTAINING NOT MORE THAN TWO ETHYLENIC GROUPS AND HAVING AT LEAST ONE CARBON ATOM BETWEEN ANY TWO SUCH ETHYLENIC GROUPS WITH HYDROGEN PEROXIDE IN THE PRESENCE OF AN ACID SALT OF AN UNSTABLE PERACID-FORMING ACID OF A HEAVY METAL OF THE GROUP CONSISTING OF TUNGSTEN AND MOLYBDENUM AT A PH BETWEEN 3.0 AND 7.0.
References Cited (Backward Citations)
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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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |