Granted Patent
Utility
US 5,915,461 · App. 09/052,393
Heat pack and trigger apparatus
Inventor:
Benito L. Tanhehco
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Mar 31, 1998
Inventor
Benito L. Tanhehco
Assignee (at issue)
DeRoyal Industries, 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.