Granted Patent
Utility
US 6,180,686 · App. 09/154,340
Cellular plastic material
Inventor:
Thomas M. Kurth
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Sep 17, 1998
Inventor
Thomas M. Kurth
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.