Granted Patent
Utility
US 4,587,849 · App. 06/706,689
Coextrusion inspection system
Inventor:
R. Michael Gross
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Feb 28, 1985
Inventor
R. Michael Gross
Assignee (at issue)
BALL CORPORATION
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.