Granted Patent
Utility
US 4,834,715 · App. 07/236,266
Needle anti-resheather
Inventor:
Paul H. Hanifl
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Aug 24, 1988
Inventor
Paul H. Hanifl
Assignee (at issue)
Sage Products, LLC
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.