Granted Patent
Utility
US 4,354,724 · App. 06/174,079
Circuit board connector indexing key
Inventor:
Howard I. Jarmy
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Jul 31, 1980
Inventor
Howard I. Jarmy
Assignee (at issue)
The Singer Company Limited
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.