Granted Patent
Utility
US 4,551,739 · App. 06/612,957
Record member
Inventors:
Robert E. Miller, Steven L. Vervacke
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: May 23, 1984
Inventors
Robert E. Miller
Steven L. Vervacke
Assignee (at issue)
Appleton Papers Inc.
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.