Granted Patent
Utility
US 4,954,071 · App. 07/414,105
Calibrating blow pin
Inventor:
George AUSTIN
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Sep 28, 1989
Inventor
George AUSTIN
Assignee (at issue)
Sewell Plastics, Inc.
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.