Granted Patent
Utility
US 6,050,545 · App. 09/010,018
Bulk container valve
Inventor:
Michael D. Stolzman
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Jan 21, 1998
Inventor
Michael D. Stolzman
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.