Granted Patent
Utility
US 4,597,247 · App. 06/787,256
Method and apparatus for applying controlled heat to a group of articles disposed within a shrink film wrapper
Inventor:
Roy A. Johnson
Patented Case
View Patent ↗
Granted: Jul 1, 1986
Filed: Oct 15, 1985
Inventor
Roy A. Johnson
Assignee (at issue)
The Mead 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.