Granted Patent
Utility
US 4,593,568 · App. 06/691,002
Ultrasonic inspection of tube to tube plate welds
Inventors:
David Telford, Thomas S. Peat
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Jan 14, 1985
Inventors
David Telford
Thomas S. Peat
Assignee (at issue)
United Kingdom Atomic Energy Authority
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.