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.:

US 7503743 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 17, 2009

Filed:

Oct. 18, 2006
Applicant:

Peter Friedrich, Boyne City, MI (US);

Inventor:

Peter Friedrich, Boyne City, MI (US);

Assignee:

Industrial Magnetics, Inc., Boyne City, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for moving a manhole cover comprising a lever having a first lever arm pivotally connected to a second lever arm by a hinge for movement between a collapsed position, wherein the first lever arm is substantially parallel to the second lever arm, and a plurality of operative positions, wherein the first lever arm extends at a non-parallel angle with respect to the second lever arm. A linkage is connected to an engaging end of the lever, and at least one magnet is connected to the linkage and engageable with the manhole cover.


Find Patent Forward Citations

Friedrich, Peter. (2009). Manhole cover lift (U.S. Patent No. 7503743). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7503743

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…