Granted Patent
Utility
US 4,891,409 · App. 07/189,937
Single phase shape-transformable elastomeric compounds
Inventors:
Tiong H. Kuan, Raymond C. Srail, Thomas R. Szczepanski
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: May 3, 1988
Inventors
Tiong H. Kuan
Raymond C. Srail
Thomas R. Szczepanski
Assignee (at issue)
RJF International 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.