Granted Patent
Utility
US 5,211,327 · App. 07/672,368
Method of welding
Inventors:
Theodore M. Clarke, Barry Slee
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Mar 20, 1991
Inventors
Theodore M. Clarke
Barry Slee
Assignee (at issue)
Case GmbH
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.