Granted Patent
Utility
US 4,346,760 · App. 06/277,742
Heat exchanger plate having distortion resistant uniform pleats
Inventor:
Gonzalo D. Vidal-Meza
Patented Case
View Patent ↗
Granted: Aug 31, 1982
Filed: Feb 18, 1981
Inventor
Gonzalo D. Vidal-Meza
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.