Granted Patent
Utility
US 4,467,150 · App. 06/351,719
Electronic keyboard
Inventors:
Richard Eugene Leitermann, Bruce G. Wilson
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Feb 24, 1982
Inventors
Richard Eugene Leitermann
Bruce G. Wilson
Assignee (at issue)
Digital Equipment 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.