Granted Patent
Utility
US 4,324,488 · App. 06/151,131
Floating edge-follower bordered paper mask
Inventors:
Richard Dyche Anderson, Ronald B. Harvey, Randall C. Knudsen, John A. Wedel
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: May 19, 1980
Inventors
Richard Dyche Anderson
Ronald B. Harvey
Randall C. Knudsen
John A. Wedel
Assignee (at issue)
Pako 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.