Granted Patent
Utility
US 5,976,280 · App. 08/759,495
Method for making a hydrogen embrittlement resistant .gamma.' strengthened nickel base superalloy material
Inventors:
Daniel P. DeLuca, Charles M. Biondo
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Dec 4, 1996
Inventors
Daniel P. DeLuca
Charles M. Biondo
Assignee (at issue)
UNITED TECHNOLOGIES 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.