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:
May. 25, 1976
Filed:
Jul. 09, 1973
Applicant:
Inventor:
Helmut Hans Weldes, Havertown, PA (US);
Assignee:
Philadelphia Quartz Company, Valley Forge, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2603 / ;
Abstract
Double silicate salts of alkali metals and quaternary nitrogen compounds are prepared by the reaction of (a) an alkylene oxide, (b) an amine, and (c) an alkali metal silicate.