Granted Patent
Utility
US 4,578,113 · App. 06/610,012
High strength steel
Inventors:
Mahendrasinh D. Rana, Ronald J. Selines
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: May 14, 1984
Inventors
Mahendrasinh D. Rana
Ronald J. Selines
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.