Granted Patent
Utility
US 4,478,310 · App. 06/478,849
Universal heat shield
Inventor:
Donald P. Harter
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Mar 25, 1983
Inventor
Donald P. Harter
Assignee (at issue)
APX Group, 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.