Granted Patent
Utility
US 6,689,447 · App. 10/246,546
Artificial surface with integrated thermal regulation for sports and other uses
Inventor:
Jean Prevost
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Sep 19, 2002
Inventor
Jean Prevost
Assignee (at issue)
Fieldturf 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.