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. 01, 1981
Filed:
Jun. 04, 1980
Applicant:
Inventor:
Pramod C Thakur, Morgantown, WV (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299 12 ; 299 19 ; 299-2 ; 166 50 ;
Abstract
Mineable coal seams which are in proximity to an overlying or underlying coal seam are degasified in advance of and during mining by drilling a generally horizontal borehole in the overlying or underlying coal seam and producing gas therefrom.