Granted Patent
Utility
US 4,435,816 · App. 06/393,989
Method and article for protecting tapered threaded electrode joints by use of an alignment mechanism
Inventors:
Herman M. Belz, Harry C. Stieber
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Jun 30, 1982
Inventors
Herman M. Belz
Harry C. Stieber
Assignee (at issue)
Union Carbide 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.