Granted Patent
Utility
US 4,452,560 · App. 06/385,584
Quick coupler assembly
Inventors:
Edward L. Coyle, Herman J. Maurer, Gary L. Cochran
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Jun 7, 1982
Inventors
Edward L. Coyle
Herman J. Maurer
Gary L. Cochran
Assignee (at issue)
J. I. Case 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.