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:
Nov. 15, 1983
Filed:
Aug. 19, 1981
Applicant:
Inventors:
Frank H Ruddle, New Haven, CT (US);
Pin-Fang Lin, Branford, CT (US);
Assignee:
Yale University, New Haven, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
156645 ; 1566591 ; 156663 ; 252 793 ; 356244 ; 430321 ; 430323 ;
Abstract
A method for engraving a grid pattern on a slide or slip is described which employs a photographic technique to create a grid pattern image in a photoresist coating on the slide or slip. Development and etching produce the engraved slide or slip. They are useful for accurate and repeated identification of cultured or manipulated cells growing thereon.