Granted Patent
Utility
US 5,429,217 · App. 08/075,107
Hydraulic positioner with integral continuously adjustable stroke limiter
Inventors:
Calvin R. Stringer, Clyde R. Porter
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Jun 11, 1993
Inventors
Calvin R. Stringer
Clyde R. Porter
Assignee (at issue)
P. L. Porter Co.
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.