Granted Patent
Utility
US 5,651,631 · App. 08/676,632
Method and apparatus for attaching a tool handle to a tool head
Inventor:
Joseph A. Carmien
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jul 10, 1996
Inventor
Joseph A. Carmien
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.