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:
May. 10, 1977
Filed:
Jun. 16, 1976
Applicant:
Inventors:
James A Edeus, Rock Falls, IL (US);
James R Johnston, Sterling, IL (US);
Assignee:
National Manufacturing Company, Sterling, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
52656 ; 403274 ;
Abstract
A metal door frame is fabricated in the field by interfitting channel cross pieces in channel uprights and curling prepunched tongues in the uprights through openings in the cross pieces to square-up and to secure the cross pieces to the uprights.
Edeus, James. (1977). Metal frame construction (U.S. Patent No. 4021988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4021988
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile