Granted Patent
Utility
US 4,883,085 · App. 07/244,297
Method of installing a stopper in a fitting and apparatus therefor
Inventors:
Michael E. Weller, Joseph L. Daghe
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Sep 15, 1988
Inventors
Michael E. Weller
Joseph L. Daghe
Assignee (at issue)
MUELLER COMPANY
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.