Granted Patent
Utility
US 6,728,946 · App. 09/703,294
Method and apparatus for creating photolithographic masks
Inventors:
Franklin Mark Schellenberg, Patrick J. LaCour
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Oct 31, 2000
Inventors
Franklin Mark Schellenberg
Patrick J. LaCour
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.