Granted Patent
Utility
US 5,415,198 · App. 08/178,706
Safety vent and deflector for a pressurized vessel
Inventors:
Daniel Ewert, Edward B. Congdon
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Jan 10, 1994
Inventors
Daniel Ewert
Edward B. Congdon
Assignee (at issue)
Deltak 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.