Granted Patent
Utility
US 4,946,291 · App. 07/251,020
Semi-bulk with liner
Inventor:
Daniel R. Schnaars
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Sep 27, 1988
Inventor
Daniel R. Schnaars
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.