Granted Patent
Utility
US 4,586,903 · App. 06/688,584
Means for generating a tactile character field
Inventor:
Joachim Burchart
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jan 3, 1985
Inventor
Joachim Burchart
Assignee (at issue)
Nixdorf Computer AG
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.