Granted Patent
Utility
US 5,249,446 · App. 07/732,754
Process for making an aluminum alloy finstock lubricated by a water-microemulsifiable composition
Inventors:
Girma Biresaw, Dianne A. Zadnik
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jul 19, 1991
Inventors
Girma Biresaw
Dianne A. Zadnik
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.