Granted Patent
Utility
US 5,032,274 · App. 07/569,060
Process for producing fluorocarbon membranes and membrane product
Inventors:
Larry Y. Yen, George Lopatin, Howard Malarkey, David S. Soane
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Aug 17, 1990
Inventors
Larry Y. Yen
George Lopatin
Howard Malarkey
David S. Soane
Assignee (at issue)
Millipore 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.