Granted Patent
Utility
US 6,694,591 · App. 09/994,239
Systems and methods for applying ring shaped seal members
Inventors:
Douglas Rullmann, Lester Banach
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Nov 26, 2001
Inventors
Douglas Rullmann
Lester Banach
Assignee (at issue)
Acadia Polymers, 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.