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:
Jul. 04, 1989
Filed:
Oct. 03, 1988
Applicant:
Inventors:
Laurence P Armstrong, Weyerhaeuser, WI;
Scott A Libby, Eau Claire, WI;
James L Peterson, Aurora, IL (US);
Roger J Norberg, Prairie Farm, WI (US);
Assignee:
Nichols- Homeshield, Inc., , IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04C / ;
U.S. Cl.
CPC ...
52656 ; 403231 ; 29513 ;
Abstract
A square butt hollow door frame including upper and lower rail members, and a pair of stile members wherein the inner walls of the stile members are provided at each end with a recess defining inwardly laterally extending flanges adapted to be received in corresponding slots defined through each end of the upper and lower rail members, such that when the respective flanges are received in the respective slots, a locking mechanism is positioned, thereby securing the side members and rail members together to form a door frame.