Granted Patent
Utility
US 4,270,379 · App. 06/035,686
Roll straightening tool
Inventor:
James Van Gompel
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: May 3, 1979
Inventor
James Van Gompel
Assignee (at issue)
BRAMMALL, INC.
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.