Granted Patent
Utility
US 6,327,249 · App. 09/369,034
Data communication device
Inventors:
Jordan Cookman, Ping Dong
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Aug 4, 1999
Inventors
Jordan Cookman
Ping Dong
Assignee (at issue)
ESS TECH, INC.
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.