Granted Patent
Utility
US 5,757,667 · App. 08/644,322
Solid state pressure detector for beverage dispensers
Inventors:
Joseph W. Shannon, Ming Zhang
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: May 10, 1996
Inventors
Joseph W. Shannon
Ming Zhang
Assignee (at issue)
IMI Wilshire 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.