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:
Jul. 21, 1981
Filed:
Nov. 27, 1978
Applicant:
Inventors:
Fumio Kodama, Chofu, JP;
Noboru Ohyama, Iwaki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H / ;
U.S. Cl.
CPC ...
428 36 ; 13 35 ; 156 89 ; 156155 ; 264 295 ; 4234472 ; 423448 ; 428218 ; 428244 ; 428280 ; 428281 ; 428282 ; 428408 ;
Abstract
By bonding a graphite sheet possessing tightness to at least one surface of carbon fiber felt sheet possessing gas permeability by means of a carbonaceous binder, a multilayer thermally insulating material suitable for use in a heating furnace employing a nonoxidizing atmosphere is obtained. This insulating material has mechanical strength which does not decrease with a long period of use and gives rise to little contamination of articles being heated in the furnace.
Kodama, Fumio. (1981). Multilayer insulating material and process for production thereof (U.S. Patent No. 4279952). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4279952
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile