Granted Patent
Utility
US 6,148,517 · App. 09/239,263
Repair of turbine exhaust case
Inventors:
Bruce G. Johnson, Ben Blumanstock
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Jan 29, 1999
Inventors
Bruce G. Johnson
Ben Blumanstock
Assignee (at issue)
Chromalloy Gas Turbine 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.