Granted Patent
Utility
US 4,627,455 · App. 06/675,209
Umbrella rib linkage system
Inventors:
Toshio Okuda, Tsun-Zong Wu
Patented Case
View Patent ↗
Granted: Dec 9, 1986
Filed: Nov 27, 1984
Inventors
Toshio Okuda
Tsun-Zong Wu
Assignees (at issue)
TOTES LLC
Fu Tai Umbrealla Works, Ltd.
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.