Granted Patent
Utility
US 5,071,059 · App. 07/666,977
Method for joining single crystal turbine blade halves
Inventors:
Peter W. Heitman, Stephen N. Hammond, Lawrence E. Brown
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Mar 11, 1991
Inventors
Peter W. Heitman
Stephen N. Hammond
Lawrence E. Brown
Assignee (at issue)
General Motors LLC
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.