Granted Patent
Utility
US 5,564,584 · App. 08/372,767
Vent cap for discharging nearly empty propane cylinders
Inventors:
Ronald K. Raboin, Dallas Schwalenberg
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Jan 13, 1995
Inventors
Ronald K. Raboin
Dallas Schwalenberg
Assignee (at issue)
Western Industries, 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.