Granted Patent
Utility
US 5,474,346 · App. 08/166,088
Face plate adapted to be inserted into a bore of a door
Inventors:
Yaw-Shin Fann, San-Yi Lin, Rong-Faa Wu, Ching-Chuan Kuo, Lan-Kun Don
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Dec 10, 1993
Inventors
Yaw-Shin Fann
San-Yi Lin
Rong-Faa Wu
Ching-Chuan Kuo
Lan-Kun Don
Assignee (at issue)
TONG LUNG METAL INDUSTRY CO., 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.