Granted Patent
Utility
US 5,510,821 · App. 08/309,364
Solid ink stick
Inventors:
Brent R. Jones, Clark W. Crawford
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Sep 20, 1994
Inventors
Brent R. Jones
Clark W. Crawford
Assignee (at issue)
Tektronix, 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.