Granted Patent
Utility
US 5,262,040 · App. 07/686,963
Method of using a metal substrate of improved surface morphology
Inventors:
Kenneth L. Hardee, Lynne M. Ernes, Richard C. Carlson
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Apr 18, 1991
Inventors
Kenneth L. Hardee
Lynne M. Ernes
Richard C. Carlson
Assignee (at issue)
Eltech Systems 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.