Granted Patent
Utility
US 4,643,794 · App. 06/835,918
Primer and sealant for glass and coated metal
Inventors:
Jeffrey W. Saracsan, Stephen M. Oswalt
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Mar 4, 1986
Inventors
Jeffrey W. Saracsan
Stephen M. Oswalt
Assignee (at issue)
Ashland Oil, 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.