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:
Sep. 13, 1994
Filed:
Jun. 10, 1993
Applicant:
Inventor:
David J Popowich, Toronto, CA;
Assignee:
Seeburn Metal Products Limited, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F / ;
U.S. Cl.
CPC ...
254126 ;
Abstract
A pantograph jack is disclosed having a drive screw having a length required to span a distance between a threaded annulus at a first joint and a second joint, the improvement comprising an extension means to extend the threaded annulus towards the second joint to shorten the said distance and the length required of the drive screw.