Granted Patent
Utility
US 5,538,545 · App. 08/334,827
Nonparticulating adsorbent recirculating filter
Inventors:
Edwin G. Dauber, Douglas B. McKenna, Michael Winterling
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Nov 4, 1994
Inventors
Edwin G. Dauber
Douglas B. McKenna
Michael Winterling
Assignee (at issue)
W. L. Gore & Associates, 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.