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:
Jan. 10, 1978
Filed:
Aug. 08, 1975
Applicant:
Inventors:
Koichiro Ohtomo, Takatsuki, JA;
Tsuyoshi Nakamo, Osaka, JA;
Assignee:
Kanebo, Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
1621 / ; 1621 / ; 260831 ; 260840 ; 260841 ; 260842 ; 260848 ;
Abstract
Heat resistant and flame resistant papers composed of at least 60% by weight of phenolic fibers having a hardened degree of 3-30% by weight, which are obtained by melt spinning a phenolic resin and cross-linking the resulting filaments with an aldehyde.