Granted Patent
Utility
US 5,903,634 · App. 08/821,612
Telephone number display apparatus listing telephone numbers by frequency of use
Inventors:
Misao Wakabayashi, Misa Kawasaki
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Mar 20, 1997
Inventors
Misao Wakabayashi
Misa Kawasaki
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.