Granted Patent
Utility
US 4,677,572 · App. 06/633,170
Pen turret control system
Inventors:
Charles Gunderson, Aftab H. Kapadya
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Jul 23, 1984
Inventors
Charles Gunderson
Aftab H. Kapadya
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.