Patent US2174935A successfully refreshed from Google Patents.
Patent US2812267A successfully refreshed from Google Patents.
US2812267A
Expired / Lapsed
US
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Resinous compositions plasticized with esters of sulfur-containing alcohols
Assignee: Shell Development Co
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Filing: 1954-03-31
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Granted: 1957-11-05
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Expires: 1974-03-31
Abstract
No abstract record available.
Inventors
- 👤 Garner Philip James
- 👤 Bowman Ralph Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:34
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
A PLASTICIZED COMPOSITION COMPRISING A POLYMERIC MATERIAL OF THE GROUP CONSISTING OF CELLULOSE ETHERS AND ESTERS AND POLYMERS OF MONOMERS CONTAINING AT LEAST ONE CH2=C=GROUP, AND AS A PLASTICIZER THEREFOR AN ESTER OF (1) AN ALCOHOL OF THE FORMULA R1XR2OH WHEREIN X IS A MEMBER OF THE GROUP CONSISTING OF -SO-AND-SO2RADICALS, R1 IS A HYDROCARBON RADICAL JOINED TO THE X RADICAL THROUGH AN ALIPHATIC CARBON ATOM AND CONTAINING FROM 1 TO 15 CARBON ATOMS AND R2 IS A BIVALENT ALIPHATIC HYDROCARBON RADICAL CONTAINING FROM 1 TO 8 CARBON ATOMS, SAID ALCOHOL CONTAINING NO MORE THAN 18 CARBON ATOMS, AND A MONOCARBOXYLIC ACID OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON MONOCARBOXYLIC ACIDS AND CYCOALIPHATIC HYDROCARBON MONOCARBOXYLIC ACIDS ALL SUCH ACIDS CONTAINING NO MORE THAN 18 CARBON ATOMS EACH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |