Granted Patent
Utility
US 4,209,239 · App. 05/833,374
Plotting apparatus having an adjustable plotting head
Inventors:
Kenneth O. Wood, Robert S. Alford
Patented Case
View Patent ↗
Granted: Jun 24, 1980
Filed: Sep 14, 1977
Inventors
Kenneth O. Wood
Robert S. Alford
Assignee (at issue)
The Gerber Scientific Instrument Company
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.