Granted Patent
Utility
US 5,348,180 · App. 08/150,839
Container having a tamper-evident seal
Inventor:
John K. Shepard
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Nov 12, 1993
Inventor
John K. Shepard
Assignee (at issue)
Sonoco Products Company
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.