Granted Patent
Utility
US 4,430,914 · App. 06/282,066
Rotary apparatus for advancing a web
Inventor:
Karl H. Keim
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Jul 10, 1981
Inventor
Karl H. Keim
Assignee (at issue)
Gloucester Engineering Co., 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.