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:
Aug. 29, 1978
Filed:
Aug. 19, 1976
Applicant:
Inventors:
Eric H Zahn, Bellevue, WA (US);
Philip W Martin, Seattle, WA (US);
Assignee:
Sterndent Corp., Old Greenwich, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ; B26D / ;
U.S. Cl.
CPC ...
32 59 ; 279 83 ;
Abstract
A rotatable mandrel is provided for stippling various surfaces, including the surface of plastic material, and is disclosed as comprising a cluster of burrs symmetrically arranged about the axis of rotation of the mandrel.