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:
Jun. 19, 1990
Filed:
Feb. 08, 1988
Applicant:
Inventor:
Emerson J Purkapile, Chicago, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62B / ; E06C / ; E06C / ;
U.S. Cl.
CPC ...
182 20 ; 182104 ; 280 30 ; 280 4728 ;
Abstract
A combination foldable ladder and hand truck is disclosed comprising a plurality of ladder sections joined at respective ends by hinges and having retractable transport wheels and a retractable support means. The device is functional as a step ladder as well as an extension ladder in an open position with the support means and transport wheels each in their retracted positions. The device is functional as a hand truck in a closed position with the support means in an extended forward position for supporting goods and the transport wheels in an extended downward position, for rolling.