Granted Patent
Utility
US 5,249,554 · App. 08/002,490
Powertrain component with adherent film having a graded composition
Inventors:
Michael Alan Tamor, Pierre A. Willermet, William C. Vassell, Arup Kumar Gangopadhyay
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jan 8, 1993
Inventors
Michael Alan Tamor
Pierre A. Willermet
William C. Vassell
Arup Kumar Gangopadhyay
Assignee (at issue)
Ford Motor Company
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.