Granted Patent
Utility
US 6,315,530 · App. 09/614,404
Submerged pump having a shaft isolator
Inventors:
Douglas J. Goodnick, Kenneth Wasch, Martin Leslie, Maynard J. Neal
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Jul 12, 2000
Inventors
Douglas J. Goodnick
Kenneth Wasch
Martin Leslie
Maynard J. Neal
Assignee (at issue)
Buffalo Pumps, 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.