Granted Patent
Utility
US 4,292,496 · App. 06/112,833
Vertical plate welding using double bevel joint
Inventors:
Malcolm G. Hoy, Walter R. Reichelt
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Jan 17, 1980
Inventors
Malcolm G. Hoy
Walter R. Reichelt
Assignee (at issue)
Aluminum Company of America
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.