Granted Patent
Utility
US 4,474,496 · App. 06/460,315
Compact dryer for two web stretches
Inventor:
Michael O. Rocheleau
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Jan 24, 1983
Inventor
Michael O. Rocheleau
Assignee (at issue)
W. R. Grace & Co.
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.