Granted Patent
Utility
US 4,310,099 · App. 06/139,813
Rotary connector
Inventor:
Richard M. Hanula
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Apr 14, 1980
Inventor
Richard M. Hanula
Assignee (at issue)
Midland-Ross 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.