Granted Patent
Utility
US 5,440,625 · App. 07/908,181
Personal-servicing communication system
Inventor:
Tadahiko Akiyama
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Jul 1, 1992
Inventor
Tadahiko Akiyama
Assignee (at issue)
Nippon Communication Industrial Co., Ltd.
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.