Granted Patent
Utility
US 4,470,860 · App. 06/337,803
Fabricating large, thick wall, tubular structures
Inventors:
Dee R. Gill, Edward T. Hikida, Daniel M. Radice
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Jan 7, 1982
Inventors
Dee R. Gill
Edward T. Hikida
Daniel M. Radice
Assignee (at issue)
HERCULES 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.