Granted Patent
Utility
US 5,902,637 · App. 08/967,531
Water repellent restorative and process of use
Inventors:
Eugene N. Castellano, Jr., Debra Lynne Raup
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Nov 10, 1997
Inventors
Eugene N. Castellano, Jr.
Debra Lynne Raup
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.