The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1992
Filed:
Nov. 20, 1990
Applicant:
Inventors:
Shozaburo Imai, Toyonaka, JP;
Michihisa Isobe, Chiba, JP;
Masahiko Moritani, Niihama, JP;
Masahiro Niwano, Niihama, JP;
Kenji Manabe, Niihama, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C08L / ;
U.S. Cl.
CPC ...
428 65 ; 359642 ; 359831 ; 428 64 ; 428913 ; 525391 ; 525905 ;
Abstract
An optical device comprising a mixture of a polymer constituted mainly of aromatic vinyl monomer units and polyphenylene ether, characterized in that the average molecular weight of the polyphenylene ether is from 0.3 to 0.7 expressed in terms of the intrinsic viscosity measured in chloroform at 25.degree. C.
Imai, Shozaburo. (1992). Optical device (U.S. Patent No. 5135791). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5135791
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