Granted Patent
Utility
US 4,907,861 · App. 07/219,871
Thin film transistor, method of repairing the film transistor and display apparatus having the thin film transistor
Inventor:
Ryujiro Muto
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Jul 12, 1988
Inventor
Ryujiro Muto
Assignee (at issue)
ASAHI GLASS 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.