Granted Patent
Utility
US 4,941,196 · App. 07/265,583
Tamper evident bag
Inventors:
Paul F. Edelman, Cynthia M. Nulliner
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Nov 1, 1988
Inventors
Paul F. Edelman
Cynthia M. Nulliner
Assignee (at issue)
KCL 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.