Granted Patent
Utility
US 4,533,978 · App. 06/499,209
Circuit board stiffening
Inventor:
Leo Walter
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Jun 6, 1983
Inventor
Leo Walter
Assignee (at issue)
Bucklee-Mears 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.