Granted Patent
Utility
US 5,016,769 · App. 07/550,044
Closure with high energy button
Inventor:
Robert J. Heilman
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Jul 9, 1990
Inventor
Robert J. Heilman
Assignee (at issue)
Continental White Cap, 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.