Granted Patent
Utility
US 4,896,839 · App. 07/146,881
Apparatus and method for winding a strip of material into an arcuate elongate passage
Inventors:
Joe E. Curtis, Jr., Clair E. Piatt, John L. Fisher, John E. Cloyd
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Apr 11, 1988
Inventors
Joe E. Curtis, Jr.
Clair E. Piatt
John L. Fisher
John E. Cloyd
Assignee (at issue)
Kuhlman 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.