Granted Patent
Utility
US 5,899,359 · App. 08/375,368
Dispensing valve for a bulk material container
Inventors:
Mark A. Smith, M. Stephen Tschanen
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jan 19, 1995
Inventors
Mark A. Smith
M. Stephen Tschanen
Assignee (at issue)
Liqui-Box Corporation
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.