Granted Patent
Utility
US 4,817,261 · App. 07/149,109
Rotary snap machine
Inventors:
Robert W. Sessions, Richard A. Rodzen
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Jan 26, 1988
Inventors
Robert W. Sessions
Richard A. Rodzen
Assignee (at issue)
Ferris Mfg. Corp.
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.