Granted Patent
Utility
US 4,728,022 · App. 06/909,756
Mask and solder form
Inventor:
John W. Jamison
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Sep 19, 1986
Inventor
John W. Jamison
Assignee (at issue)
Hughes Aircraft Company
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.