Granted Patent
Utility
US 6,349,828 · App. 08/797,478
Tamper evident packaging
Inventors:
Robert W. Sessions, Rainer Schmeichel
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Feb 6, 1997
Inventors
Robert W. Sessions
Rainer Schmeichel
Assignee (at issue)
Ferris Pharmaceuticals, 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.