Granted Patent
Utility
US 4,149,287 · App. 05/855,664
Method and apparatus for pinch pointing screw blanks
Inventor:
Edwin J. Skierski
Patented Case
View Patent ↗
Granted: Apr 17, 1979
Filed: Nov 29, 1977
Inventor
Edwin J. Skierski
Assignee (at issue)
USM Holding AG
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.