Granted Patent
Utility
US 4,717,084 · App. 06/944,020
Hydraulic system for remote operable cone crushers
Inventors:
John C. Vendelin, David F. Peaks
Patented Case
View Patent ↗
Granted: Jan 5, 1988
Filed: Dec 22, 1986
Inventors
John C. Vendelin
David F. Peaks
Assignee (at issue)
Cedarapids, Inc.
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.