Granted Patent
Utility
US 5,552,250 · App. 08/334,065
Method of manufacturing reticle
Inventor:
Hiroshi Nozue
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Nov 4, 1994
Inventor
Hiroshi Nozue
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.