Granted Patent
Utility
US 6,144,372 · App. 09/108,216
System employing semi-circular wheel for adjustably actuating electron page advancement
Inventor:
Cheng-Hsiung Chen
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jul 1, 1998
Inventor
Cheng-Hsiung Chen
Assignee (at issue)
DEXIN CORP.
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.