Granted Patent
Utility
US 4,536,882 · App. 06/119,331
Embedded absorber X-ray mask and method for making same
Inventors:
Addison B. Jones, Siegfried G. Plonski
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Feb 7, 1980
Inventors
Addison B. Jones
Siegfried G. Plonski
Assignee (at issue)
Rockwell International 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.