Granted Patent
Utility
US 4,338,714 · App. 06/162,829
Method of loading hollow rivets on a mandrel
Inventor:
John Powderly
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Jun 25, 1980
Inventor
John Powderly
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.