Patent US2505833A successfully refreshed from Google Patents.
US2505833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of sulfur dioxide-olefin resins
Assignee: Celanese Corp
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Filing: 1945-11-14
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Granted: 1950-05-02
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Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 Herman D Noether
- 👤 Ernest P Irany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:40
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
PROCESS FOR THE PRODUCTION OF RESINOUS REACTION PRODUCTS, WHICH COMPRISES INTRODUCING GASEOUS OXYGEN INTO AN UNSATURATED LIQUID HYDROCARBON CONTAINING AN OLEFINIC LINKAGE AND FREE FROM OTHER UNSATURATED LINKAGES IN AN AMOUNT IN EXCESS OF THAT REQUIRED TO FORM A CATALYTIC AMOUNT OF THE PEROXIDE OF THE HYDROCARBON, PHYSICALLY REMOVING SUCH EXCESS OF OXYGEN FROM THE HYDROCARBON SO TREATED AND REACTING SAID OXYGEN-TREATED HYDROCARBON WITH LIQUID SULFUR DIOXIDE.
Claim 2
Dependent Claim
67 words
PROCESS FOR THE PRODUCTION OF RESINOUS REACTION PRODUCTS, WHICH COMPRISES INTRODUCING GASEOUS OXYGEN INTO AN UNSATURATED LIQUID HYDROCARBON CONTAINING AN OLEFINIC LINKAGE AND FREE FROM OTHER UNSATURATED LINKAGES IN AN AMOUNT IN EXCESS OF THAT REQUIRED TO FORM A CATALYTIC AMOUNT OF THE PEROXIDE OF THE HYDROCARBON, PHYSICALLY REMOVING SUCH EXCESS OF OXYGEN FROM THE HYDROCARBON SO TREATED AND REACTING SAID OXYGEN-TREATED HYDROCARBON WITH LIQUID SULFUR DIOXIDE.
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) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |