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:
Apr. 28, 1992
Filed:
Jul. 16, 1990
Applicant:
Inventor:
Robert L Johnson, Wallingford, VT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06C / ;
U.S. Cl.
CPC ...
182204 ; 182109 ; 182111 ;
Abstract
A Johnson Ladder Leveler serving to level a ladder on an uneven surface comprising an extension leg held by a bolt nut apparatus to a treaded triangular foot which said extension leg extends longitudinally when in use while fastened by way of a spring pin head on a spring pin welded to said extension's leg's medial side and by way of a threaded screw bolt from without to a ladder receiving sleeve via insertion into said ladder receiving sleeve's outermost of two compartments while said ladder receiving sleeve internally holds an internally mounted ladder leg within the innermost of said ladder receiving sleeve's said two compartments.