Granted Patent
Utility
US 4,650,254 · App. 06/676,363
Bit holder
Inventor:
Edward Wechner
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Nov 29, 1984
Inventor
Edward Wechner
Assignee (at issue)
Joy Manufacturing Company
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.