Granted Patent
Utility
US 4,557,098 · App. 06/585,161
Deformable centering sleeve for tab of roof panel attachment clip unit
Inventors:
Vernon L. Thurnau, Arturo C. Mariano
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Mar 1, 1984
Inventors
Vernon L. Thurnau
Arturo C. Mariano
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.