Granted Patent
Utility
US 4,493,717 · App. 06/375,536
In-line disposable filter
Inventors:
L. Joseph Berger, Jr., Denis D. Guequierre
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: May 6, 1982
Inventors
L. Joseph Berger, Jr.
Denis D. Guequierre
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.