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US2967846A Expired / Lapsed US ⏱️ 0.0 years remaining

Alpha olefin polymers stabilized with fused ring sulfide compounds

Assignee: AT&T Inc
•
Filing: 1956-11-29
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Granted: 1961-01-10
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Expires: 1976-11-29
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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 2026-10-31 22:23
CPC Classifications
C; C07; C07C; C07C323/00; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K5/00; C08K5/36; C08K5/37; C08K5/372; C08K5/3725; C08K5/375

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 137 words
A COMPOSITION WHICH IS STABILIZED AGAINST OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PERCENT BY WEIGHT OF CARBON PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM 0.01 PERCENT TO 5 PERCETN OF A COMPOUND OF THE STRUCTURE AR-S-AR'' IN WHICH AR AND AR'' ARE FUSED RING CARBOCYLIC BENZENOID AROMATIC RADICALS BOTH OF WHICH CONTAIN AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROXYL RADICALS AND SECONDARY AMINE RADICALS AND, FURTHER, IN WHICH COMPOUND THE MAXIMUM NUMBER OF CARBON ATOMS IN EACH FUSED RING MOIETY INCLUDING SUBSTITUENTS IS 30, AND AN ESSENTIALLY SATURATED HYDROCARBON POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLUMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL BUTENE-1, 4-METHYL PENTENE-1, 4,4DIMETHYL PENTENE-1, DODECENE-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 137 words
A COMPOSITION WHICH IS STABILIZED AGAINST OXIDATION COMPRISING FROM 0.5 PERCENT TO 5 PERCENT BY WEIGHT OF CARBON PARTICLES OF A MAXIMUM SIZE OF 1000 ANGSTROMS, FROM 0.01 PERCENT TO 5 PERCETN OF A COMPOUND OF THE STRUCTURE AR-S-AR'' IN WHICH AR AND AR'' ARE FUSED RING CARBOCYLIC BENZENOID AROMATIC RADICALS BOTH OF WHICH CONTAIN AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROXYL RADICALS AND SECONDARY AMINE RADICALS AND, FURTHER, IN WHICH COMPOUND THE MAXIMUM NUMBER OF CARBON ATOMS IN EACH FUSED RING MOIETY INCLUDING SUBSTITUENTS IS 30, AND AN ESSENTIALLY SATURATED HYDROCARBON POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLUMERS OF ETHYLENE, PROPYLENE, BUTENE-1, 3-METHYL BUTENE-1, 4-METHYL PENTENE-1, 4,4DIMETHYL PENTENE-1, DODECENE-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)

US2160172A Cited
US2431303A Cited
US2512459A Cited
US2727879A Cited

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

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