Granted Patent
Utility
US 6,371,487 · App. 09/433,687
Gimbal and seal for the drivehead of a downhole rotary pump
Inventor:
John A. Cimbura, Sr.
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Nov 4, 1999
Inventor
John A. Cimbura, Sr.
Assignee (at issue)
Kudu Industries 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.