Granted Patent
Utility
US 6,147,889 · App. 09/232,894
Device and a method for the optical recording, storage and readout of information
Inventor:
Thilo Weitzel
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jan 15, 1999
Inventor
Thilo Weitzel
Assignee (at issue)
Campus Technologies AG
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.