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. 27, 1983
Filed:
Nov. 21, 1980
Applicant:
Inventor:
Robert O Parish, Houston, TX (US);
Assignee:
Doc's Road Boring, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ; E21C / ;
U.S. Cl.
CPC ...
405184 ; 116D / ; 175 62 ; 254 / ; 405154 ;
Abstract
Disclosed is a method of installing a conduit in the earth below a grade which includes the steps of pulling a cable through the earth along the course to be traveled by the conduit and marking the ends of the cable.