Granted Patent
Utility
US 3,953,555 · App. 05/467,035
Diffuser connector for aeration header
Inventor:
Paul R. Gley
Patented Case
View Patent ↗
Granted: Apr 27, 1976
Filed: May 6, 1974
Inventor
Paul R. Gley
Assignee (at issue)
Envirex, 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.