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:
Jun. 21, 1977
Filed:
May. 30, 1975
Applicant:
Inventors:
Evgueni Bogdanov Budevski, Sofia, BG;
Iliya Dimitrov Iliev, Sofia, BG;
Anastasiya Rostislavova Kaisheva, Sofia, BG;
Sergei Sergeev Gamburtzev, Sofia, BG;
Elena Borisova Vakanova, Sofia, BG;
Assignee:
ZLEHIT pri BAN, Sofia, BG;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01B / ;
U.S. Cl.
CPC ...
252511 ; 2524253 ;
Abstract
Powdered wetproofed materials, useful for the manufacture of gas-diffusion electrodes, are produced by forming a suspension of an electroconductive powder in a liquid which is water or an organic solvent in the presence of a wetproofing agent and recovering the wetproofed material.