Granted Patent
Utility
US 4,282,664 · App. 06/130,885
Dipper door retainer
Inventors:
Arthur M. Thiele, Herman A. Fabert, Jr.
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Mar 17, 1980
Inventors
Arthur M. Thiele
Herman A. Fabert, Jr.
Assignee (at issue)
Abex Corporation
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.