Granted Patent
Utility
US 4,803,021 · App. 07/034,794
Ultraviolet laser treating of molded surfaces
Inventors:
Dennis L. Werth, Virupaksha K. Reddy
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Apr 3, 1987
Inventors
Dennis L. Werth
Virupaksha K. Reddy
Assignee (at issue)
Amoco Corporation
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.