Granted Patent
Utility
US 4,305,271 · App. 06/104,508
Apparatus for rolling curved sections
Inventor:
Osie B. Whatley
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Dec 17, 1979
Inventor
Osie B. Whatley
Assignee (at issue)
ACF Industries Incorporated
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.