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. 15, 1977
Filed:
Apr. 21, 1975
Applicant:
Inventor:
Stephen A Davis, Philadelphia, PA (US);
Assignee:
Philadelphia Quartz Company, Valley Forge, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252358 ; 252321 ;
Abstract
A composition containing finely divided synthetic, precipitated amorphous metal-silicate and an acid; said composition having a pH of 2 to 5 being suitable for use as a base for defoamers for aqueous systems.