Granted Patent
Utility
US 4,781,691 · App. 07/074,609
Stepped needle
Inventor:
James R. Gross
Patented Case
View Patent ↗
Granted: Nov 1, 1988
Filed: Jul 17, 1987
Inventor
James R. Gross
Assignee (at issue)
The Kendall Company LP
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.