Granted Patent
Utility
US 5,233,733 · App. 07/948,338
Sheet material shrinkage apparatus
Inventors:
Gerard Rich, Gilbert Zimmerman
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Sep 21, 1992
Inventors
Gerard Rich
Gilbert Zimmerman
Assignee (at issue)
Rollin S.A.
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.