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. 27, 1978
Filed:
May. 05, 1977
Applicant:
Inventor:
Michael B Lawson, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ;
U.S. Cl.
CPC ...
134-3 ; 252 82 ; 252 86 ; 252 87 ; 166311 ; 166312 ; 252 / ; 134-2 ;
Abstract
A method for dissolving and/or disintegrating gypsum comprising contacting said gypsum with an aqueous solvent containing as an active agent an hydroxamic acid and/or certain salts thereof.