Granted Patent
Utility
US 6,800,152 · App. 10/635,178
Process for making iron-based casting alloy
Inventors:
Richard B. Gundlach, Sumita Majumdar
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Aug 6, 2003
Inventors
Richard B. Gundlach
Sumita Majumdar
Assignee (at issue)
Climax Research Services, 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.