Granted Patent
Utility
US 4,574,101 · App. 06/529,129
Exercise mat
Inventors:
Raymond A. Tricca, John K. Foster
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Sep 2, 1983
Inventors
Raymond A. Tricca
John K. Foster
Assignee (at issue)
Packaging Industries Group, 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.