Granted Patent
Utility
US 4,313,970 · App. 06/165,616
Method of masking a workpiece for painting
Inventors:
Wallace R. Jones, John F. Haas, Paul A. Krieger, David E. Frappier
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Jul 3, 1980
Inventors
Wallace R. Jones
John F. Haas
Paul A. Krieger
David E. Frappier
Assignee (at issue)
The Excello Speciality Co.
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.