Granted Patent
Utility
US 6,819,928 · App. 09/392,428
Speed esimation for digital cordless telephones
Inventor:
Tomoaki Hokao
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Sep 9, 1999
Inventor
Tomoaki Hokao
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.