Granted Patent
Utility
US 6,447,113 · App. 09/458,785
Duplex inkjet printing system
Inventors:
Kia Silverbrook, Tobin Allen King
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Dec 10, 1999
Inventors
Kia Silverbrook
Tobin Allen King
Assignee (at issue)
Silverbrook Research Pty Ltd
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.