Granted Patent
Utility
US 5,831,465 · App. 08/829,009
Variable delay circuit
Inventor:
Seiichi Watarai
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Mar 31, 1997
Inventor
Seiichi Watarai
Assignee (at issue)
NEC 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.