Granted Patent
Utility
US 5,689,935 · App. 08/613,412
Product package having reliable openability
Inventors:
William J. Derkach, Robert Hawkins, Bruce Kinsman
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Mar 11, 1996
Inventors
William J. Derkach
Robert Hawkins
Bruce Kinsman
Assignees (at issue)
Recot Inc.
Bryce 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.