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.

Date of Patent:
Feb. 18, 1992

Filed:

Feb. 26, 1990
Applicant:
Inventors:

Bryant R LaFreniere, Midland, MI (US);

Mark T Zaranski, Freeland, MI (US);

Marvin P Miller, Midland, MI (US);

Assignee:

The Dow Chemical Company, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7386462 ; 7386386 ;
Abstract

A plurality of liquid samples are introduced successively to and stored in a variable volume chamber formed in a sample container by periodically establishing communication between the chamber and a liquid source and increasing the volume of the chamber by the exact amount of the sample that is introduced into the chamber, and without varying the pressure of the liquid entering or accommodated in the chamber. The chamber remains at all times completely filled with liquid.


Find Patent Forward Citations

LaFreniere, Bryant. (1992). Periodically activated constant pressure maintaining pistoned chamber (U.S. Patent No. 5088335). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5088335

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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