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:
Oct. 17, 1978
Filed:
Jul. 11, 1977
Applicant:
Inventor:
Bert Bach, New York, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03B / ; G01N / ;
U.S. Cl.
CPC ...
353 39 ; 353 75 ; 356197 ;
Abstract
A system for the projection of the magnified image of the liquid contents on the wall of a test tube includes a light-tight cabinet, a light source, a test tube holding means which preferably positions the test tube at an angle of 10.degree.-40.degree. from the horizontal, a projection lens and a rear viewing screen.