Granted Patent
Utility
US 4,498,451 · App. 06/520,662
Cutting articles along known planes
Inventors:
Richard K. Beltz, Donald M. Large
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Aug 5, 1983
Inventors
Richard K. Beltz
Donald M. Large
Assignee (at issue)
AT&T Technologies Incorporated
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.