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:
Jun. 05, 1979
Filed:
Nov. 30, 1977
Applicant:
Inventors:
Junji Arika, Shin-nanyo, JP;
Masaru Takitani, Shin-nanyo, JP;
Keiji Mitarai, Shin-nanyo, JP;
Kazuaki Yamamoto, Shin-nanyo, JP;
Assignee:
Toyo Soda Manufacturing Co., Ltd., Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423430 ; 423432 ;
Abstract
Chain structured corpuscular calcium carbonate is produced by a carbonation of calcium hydroxide suspended in water in the presence of a chelating agent and a water soluble metal salt.