Granted Patent
Utility
US 4,469,026 · App. 06/330,866
Method and apparatus for controlling drying and detaching of printed material
Inventor:
John W. Irwin
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Dec 15, 1981
Inventor
John W. Irwin
Assignee (at issue)
IBM 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.