Granted Patent
Utility
US 5,970,595 · App. 08/504,100
Porous inking members for impact printers and methods of making the same
Inventor:
Yaoping Tan
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jul 19, 1995
Inventor
Yaoping Tan
Assignee (at issue)
NCR Corporation
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.