Granted Patent
Utility
US 4,637,307 · App. 06/531,648
Automatic mechanical resonant frequency detector and driver for shuttle printer mechanism
Inventor:
Donald E. Miller
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Sep 13, 1983
Inventor
Donald E. Miller
Assignee (at issue)
Genicom 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.