Granted Patent
Utility
US 4,774,976 · App. 07/100,330
Modulating hydraulic pressure control valve and assembly method therefor
Inventors:
James P. Janecke, Ronald C. Koltz
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Sep 23, 1987
Inventors
James P. Janecke
Ronald C. Koltz
Assignee (at issue)
Applied Power 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.