Granted Patent
Utility
US 5,370,147 · App. 08/168,436
Apparatus and method for an inflatable bladder valve system
Inventors:
Jaime R. Brusse, Frank Charles Zegler
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Dec 16, 1993
Inventors
Jaime R. Brusse
Frank Charles Zegler
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.