Granted Patent
Utility
US 6,802,138 · App. 10/071,303
Cushioning system for footwear and related method of manufacture
Inventors:
Ronald P. McManus, William J. Brown, Gary L. Sikes
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Feb 8, 2002
Inventors
Ronald P. McManus
William J. Brown
Gary L. Sikes
Assignee (at issue)
Wolverine World Wide, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.