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:
Sep. 01, 1981
Filed:
Apr. 08, 1975
Applicant:
Inventor:
Edward J Leech, Oyster Bay, NY (US);
Assignee:
Photocircuits Division of Kollmorgen Corp., Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
428323 ; 174 685 ; 427 97 ; 427 98 ; 427215 ; 427217 ; 427290 ; 427304 ; 427305 ; 427306 ; 428324 ; 428325 ; 428328 ; 428329 ; 428331 ; 428901 ;
Abstract
Improved catalytic fillers result from the use of hydrazine to render reducible metal salts absorbed on filler material surfaces catalytic to the deposition of electroless metal. Use of such catalytic fillers in forming insulated articles in which holes are made lead to improved electroless metallization of the barrels of such holes.