Granted Patent
Utility
US 5,493,690 · App. 08/266,569
Foldable portable telephone set
Inventor:
Mamoru Shimazaki
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Jun 28, 1994
Inventor
Mamoru Shimazaki
Assignee (at issue)
NEC 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.