Granted Patent
Utility
US 6,030,469 · App. 09/044,784
Fully martensitic steel alloy
Inventors:
Peter Ernst, Peter Uggowitzer, Markus Speidel, Alkan Göcmen
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Mar 20, 1998
Inventors
Peter Ernst
Peter Uggowitzer
Markus Speidel
Alkan Göcmen
Assignee (at issue)
ABB RESEARCH LTD.
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.