Granted Patent
Utility
US 4,378,393 · App. 06/242,877
Heat-shrinkable article
Inventor:
Jack H. Smuckler
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Mar 12, 1981
Inventor
Jack H. Smuckler
Assignee (at issue)
High Voltage Engineering 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.