Granted Patent
Utility
US 4,589,804 · App. 06/479,377
Method for waterproofing surfaces
Inventors:
Arnis U. Paeglis, Ebon P. Weaver
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Mar 28, 1983
Inventors
Arnis U. Paeglis
Ebon P. Weaver
Assignee (at issue)
Uniroyal Chemical Company, 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.