Granted Patent
Utility
US 4,418,264 · App. 06/281,328
Device and method for repairing conductor path breaks by welding
Inventor:
Ruediger Thorwarth
Patented Case
View Patent ↗
Granted: Nov 29, 1983
Filed: Jul 8, 1981
Inventor
Ruediger Thorwarth
Assignee (at issue)
Siemens Aktiengesellschaft
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.