Granted Patent
Utility
US 4,121,003 · App. 05/790,118
Tamper indicating labels
Inventor:
Frederick P. Williams
Patented Case
View Patent ↗
Granted: Oct 17, 1978
Filed: Apr 22, 1977
Inventor
Frederick P. Williams
Assignee (at issue)
Monarch Marking Systems, 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.