Granted Patent
Utility
US 6,237,908 · App. 09/260,840
Electronic book verification system
Inventors:
Bobby Chang, Thang Hoang, Ronald D. Peadro
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Mar 2, 1999
Inventors
Bobby Chang
Thang Hoang
Ronald D. Peadro
Assignee (at issue)
R.R. DONNELLEY & SONS COMPANY
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.