Granted Patent
Utility
US 6,130,175 · App. 09/315,997
Integral multi-layered ion-exchange composite membranes
Inventors:
Greg Rusch, Jeffrey A. Kolde
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: May 21, 1999
Inventors
Greg Rusch
Jeffrey A. Kolde
Assignee (at issue)
Gore Enterprise Holdings, 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.