Granted Patent
Utility
US 4,748,060 · App. 06/946,768
Flexible pipe covering seam sealing
Inventors:
William F. Fry, Joseph L. Giandalia, Rickie L. Sitler
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Dec 29, 1986
Inventors
William F. Fry
Joseph L. Giandalia
Rickie L. Sitler
Assignee (at issue)
ARMSTRONG WORLD INDUSTRIES, INC.
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.