Granted Patent
Utility
US 6,183,208 · App. 09/493,822
Immersible motor system
Inventors:
Mark M. Qandil, Robert B. Ray
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Jan 28, 2000
Inventors
Mark M. Qandil
Robert B. Ray
Assignee (at issue)
Roper Holdings, 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.