Granted Patent
Utility
US 4,424,744 · App. 06/491,996
Adjustable drive system for matching surface speeds of a transfer roll and plate roll and method thereof
Inventors:
James R. Harper, Charles L. O'Klatner
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: May 5, 1983
Inventors
James R. Harper
Charles L. O'Klatner
Assignee (at issue)
Harper Corporation of America
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.