Granted Patent
Utility
US 5,289,873 · App. 07/902,158
Heat exchanger sideplate interlocked with header
Inventors:
Richard P. Ryan, Gary A. Halstead, Glenn W. Shaffer, Shrikant Mukund Joshi
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Jun 22, 1992
Inventors
Richard P. Ryan
Gary A. Halstead
Glenn W. Shaffer
Shrikant Mukund Joshi
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.