Granted Patent
Utility
US 4,522,673 · App. 06/373,757
Heat insulating blanket
Inventors:
Barry M. Fell, Peter R. Ciriscioli
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Apr 30, 1982
Inventors
Barry M. Fell
Peter R. Ciriscioli
Assignee (at issue)
Hexcel 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.