Granted Patent
Utility
US 4,452,314 · App. 06/369,442
Method of installing a reinforced thermosetting resin sucker rod assembly composed of pultruded arcuate sections
Inventor:
Earl M. Zion
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Apr 19, 1982
Inventor
Earl M. Zion
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.