Granted Patent
Utility
US 4,333,091 · App. 06/255,013
Command buffers for electronic code keyer
Inventor:
Terry A. Perdue
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Apr 17, 1981
Inventor
Terry A. Perdue
Assignee (at issue)
Zenith Radio Corporation
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.