Granted Patent
Utility
US 4,711,347 · App. 06/829,802
Protective envelope for optical data card
Inventors:
Jerome Drexler, Richard M. Haddock
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Feb 14, 1986
Inventors
Jerome Drexler
Richard M. Haddock
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.