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:
Aug. 23, 1988
Filed:
May. 13, 1986
Applicant:
Inventor:
Ulrich Heim, Reinfeld, DE;
Assignee:
Dragerwerk AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 59 ; 422 60 ; 422 86 ; 422 88 ; 436169 ; 436170 ; 436900 ;
Abstract
A test vial for the detection of gas components in air, containing a packing changing along the longitudinal axis of the test vial is improved in such a manner that, at a constant flow resistance, a sensitivity for the hazardous substance to be detected is obtained, which varies along the test vial. The provision is made that the packing consists of a combination of applied indicator and carrier substance at ratios varying along the longitudinal axis.
Heim, Ulrich. (1988). Gas testing vial (U.S. Patent No. 4765962). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4765962
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile