Granted Patent
Utility
US 4,935,308 · App. 06/775,207
Composite material and method of making same
Inventor:
Richard Guerra
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Sep 12, 1985
Inventor
Richard Guerra
Assignee (at issue)
Sanders GmbH
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.