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:
Sep. 23, 1980
Filed:
Mar. 21, 1979
Applicant:
Inventor:
Sanders Goldstein, Cambridge, MA (US);
Assignee:
Emhart Industries, Inc., Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
73 6 / ;
Abstract
A sensing element is embedded in an absorbant material having a substantial affinity for the substance to be sensed and a relatively low affinity for the liquid. A measurable quantity of the substance is concentrated in proximity to the sensing element and accurately positioning the sensing element in the material the thickness of the substance on the liquid surface is determinable.
Goldstein, Sanders. (1980). Apparatus and method for sensing a substance on a liquid surface (U.S. Patent No. 4223552). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4223552
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile