Granted Patent
Utility
US 4,749,430 · App. 06/919,919
Method of making an encapsulated assemblage
Inventors:
Gay M. Samuelson, David J. St. Clair, Richard L. Danforth
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Oct 16, 1986
Inventors
Gay M. Samuelson
David J. St. Clair
Richard L. Danforth
Assignee (at issue)
SHELL OIL 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.