Granted Patent
Utility
US 5,201,203 · App. 07/726,892
Flat plastic key with shortened key alignment groove
Inventor:
Robert Almblad
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jul 8, 1991
Inventor
Robert Almblad
Assignee (at issue)
MITSUBISHI 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.