Granted Patent
Utility
US 4,809,858 · App. 07/109,750
Composite closure cap with removal torque control
Inventor:
Charles S. Ochs
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Oct 19, 1987
Inventor
Charles S. Ochs
Assignee (at issue)
ANCHOR HOCKING, LLC
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.