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:
Jan. 05, 1988
Filed:
Jun. 23, 1986
Applicant:
Inventors:
Raymond H Pittman, Batavia, IL (US);
William J Schultz, St. Charles, IL (US);
Assignee:
Masonite Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26F / ; B26F / ;
U.S. Cl.
CPC ...
295271 ; 29414 ; 51324 ; 83 17 ; 83920 ;
Abstract
A new and improved method of making an opening extending between opposite faces of thin sheet material comprises the steps of forming a depression in one of the faces of the sheet material resulting in a projection opposite the depression on the opposite face protruding outwardly thereof and removing the projection to form an opening extending completely through the sheet material between said opposite faces.