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:
Mar. 18, 1997
Filed:
Jun. 24, 1996
Applicant:
Inventors:
Chung-Ping Lai, Chutung Hsinchu, TW;
Ai-Kang Li, Chutung Hsinchu, TW;
Cheng-Tsu Fu, Chutung Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427595 ; 427287 ; 427292 ; 427435 ; 4274432 ;
Abstract
According to this invention, a novel marking method for block gauges employing an improved electron discharge marking approach is provided. The method for marking on the surface of a block gauge, comprising: