Granted Patent
Utility
US 5,188,321 · App. 07/732,791
Keyboard stand
Inventors:
Bernard Hirschenson, Joanna Hardin
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Jul 19, 1991
Inventors
Bernard Hirschenson
Joanna Hardin
Assignee (at issue)
Compucube, Inc.
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.