Granted Patent
Utility
US 4,566,505 · App. 06/509,766
Packaging machine
Inventors:
Walter Ruf, Robert G. Kelley
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Jun 30, 1983
Inventors
Walter Ruf
Robert G. Kelley
Assignee (at issue)
St. Regis Corporation
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.