Granted Patent
Utility
US 4,594,672 · App. 06/538,876
Multi-column plotter
Inventors:
Howard E. Brewer, A. William Lyons, II
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Oct 4, 1983
Inventors
Howard E. Brewer
A. William Lyons, II
Assignee (at issue)
Sanders GmbH
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.