Granted Patent
Utility
US 6,320,745 · App. 09/413,505
Cooling mechanism for electrical device having rolling shaft
Inventor:
Sun Chen
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Oct 6, 1999
Inventor
Sun Chen
Assignee (at issue)
Mustek Systems 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.