Granted Patent
Utility
US 4,900,637 · App. 07/254,702
Tag for labeling an article cast from molten material, method therefore and article
Inventor:
James L. Darovec
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Oct 7, 1988
Inventor
James L. Darovec
Assignee (at issue)
Aluminum Company of America
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.