Granted Patent
Utility
US 5,747,758 · App. 08/720,015
Keyboard arrangement
Inventors:
Gerhard Hochgesang, Andrea Grosse
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Sep 27, 1996
Inventors
Gerhard Hochgesang
Andrea Grosse
Assignee (at issue)
Preh-Werke GmbH & Co. KG
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.