Granted Patent
Utility
US 4,295,521 · App. 06/178,278
Heat exchanger core mounting apparatus
Inventor:
Mark F. Sommars
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Aug 15, 1980
Inventor
Mark F. Sommars
Assignee (at issue)
Caterpillar Tractor Co.
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.