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:
Jan. 13, 1981
Filed:
Mar. 26, 1979
Applicant:
Inventors:
Hiroji Shibazaki, Takarazuka, JP;
Setsuji Edagawa, Nishinomiya, JP;
Hisashi Hasegawa, Nishinomiya, JP;
Satoshi Kondo, Nishinomiya, JP;
Assignee:
Shiraishi Kogyo Kaisha, Ltd., Amagasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01F / ; C01F / ;
U.S. Cl.
CPC ...
423430 ; 106306 ; 423432 ;
Abstract
The invention provides calcium carbonate particles comprising a core and projections formed thereon, and process for preparing same. The calcium carbonates of this invention are useful as fillers and pigments for rubbers, plastics, papers, etc. because of their peculiar configuration and unique properties.
Shibazaki, Hiroji. (1981). Calcium carbonate particles and processes for preparing same (U.S. Patent No. 4244933). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4244933
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile