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:
Feb. 27, 1990
Filed:
Oct. 20, 1988
Applicant:
Inventors:
John S Kreitzberg, Portland, OR (US);
Herbert E Jones, Portland, OR (US);
Terry L Briscoe, Portland, OR (US);
Assignee:
Esco Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
37195 ; 3714 / ; 299 92 ; 403324 ; 403379 ;
Abstract
A tooth point having key slots top and bottom wherein the rear walls of the slots are outwardly convergent relative to the front walls to permit receipt of a curved locking pin.