Granted Patent
Utility
US 6,409,308 · App. 09/443,217
Method of forming an inkjet printhead nozzle structure
Inventors:
Colin Maher, Kent Lee Ubellacker
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Nov 19, 1999
Inventors
Colin Maher
Kent Lee Ubellacker
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.