Granted Patent
Utility
US 5,953,810 · App. 08/912,725
Weatherproofing for sheet metal roofing
Inventors:
Robert R. Goodhart, Paula Costantini, Ray A. Benesh, James A. Orr
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Aug 18, 1997
Inventors
Robert R. Goodhart
Paula Costantini
Ray A. Benesh
James A. Orr
Assignee (at issue)
Weirton Steeel 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.