Granted Patent
Utility
US 4,441,256 · App. 06/444,262
Manipulator for creating a multiplicity of varied line designs
Inventors:
Charles A. Cummings, William R. La Dow
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: Nov 23, 1982
Inventors
Charles A. Cummings
William R. La Dow
Assignee (at issue)
CPG Products Corp.
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.