Granted Patent
Utility
US 4,359,134 · App. 06/213,412
Sound suppressor for fluid flow lines
Inventor:
Barry N. Jackson
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Dec 5, 1980
Inventor
Barry N. Jackson
Assignee (at issue)
American Hospital Supply Corp.
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.