Quo vadis US patent law?

November 28th, 2007, Tomasz Rychlicki

Abstract
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

Patent number: 6368227
Filing date: Nov 17, 2000
Issue date: Apr 9, 2002
Inventor: Steven Olson
Primary Examiner: Kien T. Nguyen
Attorney: Peter Lowell Olson

US patent nr 6,368,227.

Kategorie: prawo USA | prawo patentowe