Granted Patent
Utility
US 5,981,411 · App. 09/078,975
Thermoformable material
Inventor:
Steven R. Brown
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: May 14, 1998
Inventor
Steven R. Brown
Assignee (at issue)
Foss Manufacturing Co., 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.