Patent US3778049A successfully refreshed from Google Patents.
Patent US2773909A successfully refreshed from Google Patents.
US2773909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition of hydrogen peroxide to olefinic compounds
Assignee: Shell Development Co
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Filing: 1952-06-23
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Granted: 1956-12-11
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Expires: 1972-06-23
Abstract
No abstract record available.
Inventors
- 👤 Curtis W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:51
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS OF PRODUCING GLYCERINE WHICH COMPRISES REACTING ALLYL ALCOHOL WITH AQUEOUS HYDROGEN PEROXIDE AT A TEMPERATURE OF ABOUT 70* C. TO 90* C. UNDER THE CATALYTIC INFLUENCE OF A MEMBER OF THE GROUP CONSISTING OF THE TUNGSTOHETEROPOLY ACIDS OF PHOSPHORUS, BERYLLIUM AND MANGANESE.
Claim 2
Dependent Claim
44 words
A PROCESS OF PRODUCING GLYCERINE WHICH COMPRISES REACTING ALLYL ALCOHOL WITH AQUEOUS HYDROGEN PEROXIDE AT A TEMPERATURE OF ABOUT 70* C. TO 90* C. UNDER THE CATALYTIC INFLUENCE OF A MEMBER OF THE GROUP CONSISTING OF THE TUNGSTOHETEROPOLY ACIDS OF PHOSPHORUS, BERYLLIUM AND MANGANESE.
References Cited (Backward Citations)
US2373942A
Cited
US2613223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |