Granted Patent
Utility
US 4,889,717 · App. 07/184,469
Barrier material for gel sealant-cable jacket interface
Inventors:
Anne E. Covington, Thomas A. Hunter, Keith Dawes
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Apr 21, 1988
Inventors
Anne E. Covington
Thomas A. Hunter
Keith Dawes
Assignee (at issue)
Raychem Limited
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.