Granted Patent
Utility
US 4,339,893 · App. 06/195,413
Quick release hub assembly
Inventor:
Roger H. Fournier
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: Oct 9, 1980
Inventor
Roger H. Fournier
Assignee (at issue)
Warner & Swasey
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.