Granted Patent
Utility
US 5,728,992 · App. 08/609,082
Apparatus and method for real time evaluation of laser welds especially in confined spaces such as within heat exchanger tubing
Inventor:
Kenneth J. Swidwa
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Feb 29, 1996
Inventor
Kenneth J. Swidwa
Assignee (at issue)
Westinghouse Electric Company 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.