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. 01, 1991
Filed:
Nov. 13, 1990
Applicant:
Inventors:
Christian M Le Floc'H, Blanquefort, FR;
Francois Perrot, Merignac, FR;
Assignee:
Societe Nationale Industrielle, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02N / ;
U.S. Cl.
CPC ...
73644 ; 73597 ; 73624 ; 73627 ;
Abstract
A device is disclosed for measuring the variation of the distance separating the two faces of a layer of solid material by means of ultrasounds, comprising: