Granted Patent
Utility
US 6,134,892 · App. 09/243,768
Cooled electrical system for use downhole
Inventors:
William Evans Turner, Ronald Seppa, William Edward Turner, Alan J. Sallwasser
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Feb 3, 1999
Inventors
William Evans Turner
Ronald Seppa
William Edward Turner
Alan J. Sallwasser
Assignee (at issue)
APS Technology, LLC
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.