Patent US2967845A successfully refreshed from Google Patents.
US2967845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha olefin hydrocarbons stabilized with carbon black and a carbocyclic thioether
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
2026-10-29 10:24
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
119 words
A COMPOSITION WHICH IS STABILIZED AGAINST OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PECENT BY WEIGHT OF CARBON BLACK PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM 0.01 PERCENT OF 5 PERCENT OF A THIOETHER CONTAINING TWO CARBOCYLIC BENZOID AROMATIC NUCLEI AT LEAST ONE OF WHICH IS JOINED THROUGH A METHYLENE GROUP TO THE SULFUR ATOM, IN WHICH THIOETHER THE MAXIMUM NUMBER OF CARBON ATOMS IN EACH MOIETY INCLUDING SUBSTITUENTS IS 30, AND AN ESSENTIALLY SATURATED HYDROCARBONS POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL BUTENE-1, 4METHYL PENTENE-1, 4,4-DIMETHYL PENTENE-1, DODECENE-1, 3METHYL PENTENE-1, AND MIXTURES OF ANY OF THESE MATERIALS, AND IN WHICH ALL WEIGHT PERCENT ARE BASED ON THE SAID COMPOSITION.
Claim 2
Dependent Claim
119 words
A COMPOSITION WHICH IS STABILIZED AGAINST OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PECENT BY WEIGHT OF CARBON BLACK PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM 0.01 PERCENT OF 5 PERCENT OF A THIOETHER CONTAINING TWO CARBOCYLIC BENZOID AROMATIC NUCLEI AT LEAST ONE OF WHICH IS JOINED THROUGH A METHYLENE GROUP TO THE SULFUR ATOM, IN WHICH THIOETHER THE MAXIMUM NUMBER OF CARBON ATOMS IN EACH MOIETY INCLUDING SUBSTITUENTS IS 30, AND AN ESSENTIALLY SATURATED HYDROCARBONS POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL BUTENE-1, 4METHYL PENTENE-1, 4,4-DIMETHYL PENTENE-1, DODECENE-1, 3METHYL PENTENE-1, AND MIXTURES OF ANY OF THESE MATERIALS, AND IN WHICH ALL WEIGHT PERCENT ARE BASED ON THE SAID COMPOSITION.
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) | 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 |