Granted Patent
Utility
US 5,425,912 · App. 08/271,842
Low expansion superalloy with improved toughness
Inventors:
Darrell F. Smith, Jr., Larry I. Stein, Il Sun Hwang
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Jul 7, 1994
Inventors
Darrell F. Smith, Jr.
Larry I. Stein
Il Sun Hwang
Assignees (at issue)
INCO Alloys International, Inc.
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
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.