Granted Patent
Utility
US 4,401,845 · App. 06/296,102
Low smoke and flame spread cable construction
Inventors:
Oliver R. Odhner, Joseph W. Michaud
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Aug 26, 1981
Inventors
Oliver R. Odhner
Joseph W. Michaud
Assignee (at issue)
Pennwalt 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.