Granted Patent
Utility
US 4,452,710 · App. 06/421,618
Functional fluid
Inventor:
Mark A. Williams
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Sep 22, 1982
Inventor
Mark A. Williams
Assignee (at issue)
Cincinnatti Milacron 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.