Granted Patent
Utility
US 5,639,131 · App. 08/502,696
Tamper resistant seal with controlled break
Inventor:
Charles Fuehrer
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jul 14, 1995
Inventor
Charles Fuehrer
Assignee (at issue)
Stoffel Seals 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.