Granted Patent
Utility
US 6,585,818 · App. 09/923,069
Pigment ink formulation
Inventors:
Sharad R. Thakkar, Jing X. Sun
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Aug 6, 2001
Inventors
Sharad R. Thakkar
Jing X. Sun
Assignee (at issue)
Lexmark International, 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.