Granted Patent
Utility
US 6,201,972 · App. 09/274,782
Cellular system and frequency carrier allocation method
Inventor:
Kojiro Hamabe
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Mar 23, 1999
Inventor
Kojiro Hamabe
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.