Patent US2967847A successfully refreshed from Google Patents.
US2967847A
Expired / Lapsed
US
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Alpha olefin hydrocarbons stabilized with carbon black and a compound having r-s-s-rstructure
Assignee: AT&T Inc
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Filing: 1956-11-29
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Granted: 1961-01-10
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Expires: 1976-11-29
Abstract
No abstract record available.
Inventors
- 👤 Walter L Hawkins
- 👤 Vincent L Lanza
- 👤 Field H Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:55
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K5/00; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITION WHICH IS STABILIZED AGAINS OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PERCENT BY WEIGHT OF CARBON BLACK PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM .01 PERCENT TO 5 PERCENT BY WEIGHT OF A COMPUND CONTAINING AT LEAST ONE UNIT OF THE STRUCTURE R-S-S-R'' IN WHICH R AND R'' ARE ALKYL RADICALS EACH CONTAINING FROM 4 TO 30 CARBONS ATOMS, AND AN ESSENTIALLY SATURATED HYDROCARBON POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL PENTENE-1 AND MIXTURES OF ANY OF THESE MATERIALS AND IN WHICH ALL WEIGHT PERCENTS ARE BASED ON THE SAID COMPOSITION.
Claim 2
Dependent Claim
102 words
A COMPOSITION WHICH IS STABILIZED AGAINS OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PERCENT BY WEIGHT OF CARBON BLACK PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM .01 PERCENT TO 5 PERCENT BY WEIGHT OF A COMPUND CONTAINING AT LEAST ONE UNIT OF THE STRUCTURE R-S-S-R'' IN WHICH R AND R'' ARE ALKYL RADICALS EACH CONTAINING FROM 4 TO 30 CARBONS ATOMS, AND AN ESSENTIALLY SATURATED HYDROCARBON POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL PENTENE-1 AND MIXTURES OF ANY OF THESE MATERIALS AND IN WHICH ALL WEIGHT PERCENTS ARE BASED ON THE SAID COMPOSITION.
References Cited (Backward Citations)
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US2512459A
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US2643241A
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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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |