Granted Patent
Utility
US 5,010,131 · App. 07/424,426
Barrier coating
Inventor:
Steven D. Wagner
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Oct 20, 1989
Inventor
Steven D. Wagner
Assignee (at issue)
Texo 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.