Granted Patent
Utility
US 4,957,601 · App. 07/351,256
Method of forming an array of apertures in an aluminum foil
Inventors:
Jules D. Levine, Millard J. Jensen
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: May 8, 1989
Inventors
Jules D. Levine
Millard J. Jensen
Assignee (at issue)
Texas Instruments Incorporated
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.