Granted Patent
Utility
US 6,656,575 · App. 09/821,448
Multilayer system with protecting layer system and production method
Inventors:
Frederik Bijkerk, Eric Louis, Andrey E. Yakshin, Peter Gorts, Sebastian Oestreich
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Mar 29, 2001
Inventors
Frederik Bijkerk
Eric Louis
Andrey E. Yakshin
Peter Gorts
Sebastian Oestreich
Assignee (at issue)
Carl Zeiss Stiftung
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.