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:
Dec. 03, 1991
Filed:
Nov. 21, 1989
Applicant:
Inventors:
Giuseppe Pizzigoni, Varese, IT;
Paolo Parrini, Novara, IT;
Assignee:
Larac S.p.A., Varese, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
25217414 ; 252523 ; 252541 ; 25217425 ; 252140 ; 252155 ; 252128 ; 252129 ; 252130 ; 252131 ;
Abstract
Improved compositions for the sulphation-removing cleaning of lithoidal surfaces of prevailingly carbonatic nature, or of layers of such nature on different materials, comprising a mixture of an anion-exchange material (e.g., an anion-exchange resin) with an aqueous solution of ammonium carbonate and/or bicarbonate, and a filler selected from the group consisting of powders and/or fibrils of hydrophilic materials.
Pizzigoni, Giuseppe. (1991). Compositions for the sulphation-removing cleaning of carbonatic (U.S. Patent No. 5069811). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5069811
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile