Granted Patent
Utility
US 4,469,450 · App. 06/383,426
Electroacoustic method for nondestructively monitoring the internal temperature of objects
Inventor:
Costantino L. Divincenzo
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Jun 1, 1982
Inventor
Costantino L. Divincenzo
Assignee (at issue)
The Firestone Tire & Rubber Company
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.