Granted Patent
Utility
US 4,289,048 · App. 05/940,934
Lock-up system for torque converter
Inventors:
Steve A. Mikel, Alfred P. Blomquist
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Sep 11, 1978
Inventors
Steve A. Mikel
Alfred P. Blomquist
Assignee (at issue)
Chrysler Group 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.