Granted Patent
Utility
US 4,804,170 · App. 07/013,408
Counterbalance assembly for rotatable robotic arm and the like
Inventors:
Frederick C. Young, Walter Binder
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Feb 11, 1987
Inventors
Frederick C. Young
Walter Binder
Assignee (at issue)
Cincinnatti Milacron 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.