Granted Patent
Utility
US 4,773,193 · App. 06/865,804
Flexible joint building system
Inventors:
Lawrence F. Biebuyck, William W. Watson
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: May 22, 1986
Inventors
Lawrence F. Biebuyck
William W. Watson
Assignee (at issue)
BUTLER MANUFACTURING COMPANY
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.