Granted Patent
Utility
US 5,214,647 · App. 07/652,519
CSMA type communication system
Inventor:
Yuji Komatsu
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Feb 8, 1991
Inventor
Yuji Komatsu
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.