Granted Patent
Utility
US 6,554,243 · App. 09/813,823
Rollable sports base
Inventors:
Mark E. Davis, Ronald A. White, Keith Kristiansen, Michael Ballone, Gary Grossman
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Mar 22, 2001
Inventors
Mark E. Davis
Ronald A. White
Keith Kristiansen
Michael Ballone
Gary Grossman
Assignee (at issue)
Huffy Corporation
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.