Granted Patent
Utility
US 4,654,248 · App. 06/809,655
Printed wiring board with zones of controlled thermal coefficient of expansion
Inventor:
Juzer Mohammed
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Dec 16, 1985
Inventor
Juzer Mohammed
Assignee (at issue)
GTE Communication 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.