Granted Patent
Utility
US 4,526,616 · App. 06/513,090
Load-bearing thermal insulator
Inventors:
Thomas G. Fennell, Ronald Fisher
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Jul 12, 1983
Inventors
Thomas G. Fennell
Ronald Fisher
Assignee (at issue)
Dunlop 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.