Granted Patent
Utility
US 4,645,087 · App. 06/805,025
Tamper indicating device
Inventor:
Maximillian Kusz
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Dec 5, 1985
Inventor
Maximillian Kusz
Assignee (at issue)
Owens-Illinois 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.