Granted Patent
Utility
US 4,332,175 · App. 06/149,221
Counterbalance loading device
Inventor:
Theodore J. Krainski, Jr.
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: May 12, 1980
Inventor
Theodore J. Krainski, Jr.
Assignee (at issue)
Johnson & Johnson GmbH
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.