Granted Patent
Utility
US 5,630,699 · App. 08/521,637
Pump box with replaceable erosion protector
Inventors:
Michael P. Kirby, Sarath Rujakaruna, Jorge Mellado
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Aug 31, 1995
Inventors
Michael P. Kirby
Sarath Rujakaruna
Jorge Mellado
Assignee (at issue)
Durametallic Corporation
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.