Granted Patent
Utility
US 6,246,235 · App. 09/064,334
Tubular products inspection
Inventors:
Donald E. Lowden, Kenneth Wayne Sanders
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Apr 22, 1998
Inventors
Donald E. Lowden
Kenneth Wayne Sanders
Assignee (at issue)
USX 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.