Granted Patent
Utility
US 4,396,701 · App. 06/301,230
Highly absorptive dye-containing underlayer for laser recording and data storage media
Inventor:
Eric W. Bouldin
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Sep 11, 1981
Inventor
Eric W. Bouldin
Assignee (at issue)
Drexler Technology 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.