Granted Patent
Utility
US 4,267,977 · App. 06/085,341
Temperature controlled unit injector
Inventors:
Alan R. Stockner, Michael K. Stratton
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Jun 4, 1979
Inventors
Alan R. Stockner
Michael K. Stratton
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.