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:
Mar. 20, 2007
Filed:
Apr. 22, 2005
Applicants:
Eric Jackson, New Westminster, CA;
Jim Friant, Seattle, WA (US);
Inventors:
Eric Jackson, New Westminster, CA;
Jim Friant, Seattle, WA (US);
Assignee:
Placer Dome Technical Services Limited, Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 25/56 (2006.01); E21C 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment, an excavation method is provided that includes the steps of: