Granted Patent
Utility
US 4,219,600 · App. 06/001,801
Moisturizing mat and process for making the same
Inventors:
Philip Surowitz, William L. Wetzel
Patented Case
View Patent ↗
Granted: Aug 26, 1980
Filed: Jan 8, 1979
Inventors
Philip Surowitz
William L. Wetzel
Assignee (at issue)
Chicopee
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.