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:
Feb. 03, 1976
Filed:
Aug. 23, 1974
Applicant:
Inventor:
Bruce W Brockett, Dayton, OH (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
428402 ; 252316 ; 427150 ;
Abstract
A pressure-rupturable, liquid-droplet-containing microcapsule having walls of hydrophilic polymeric film-material such as gelatin wherein the liquid core-material is a water-immiscible oil having water dissolved therein together with additional material which is water-soluble such as a water-soluble colorless chromogenic dye-precursor material or color-developing reactant material.