Granted Patent
Utility
US 6,180,427 · App. 09/112,832
Method of manufacture of a thermally actuated ink jet including a tapered heater element
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Jul 10, 1998
Inventor
Kia Silverbrook
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.