Granted Patent
Utility
US 5,828,489 · App. 08/631,509
Narrow wavelength polarizing beamsplitter
Inventors:
Walter E. Johnson, William H. Southwell, Randolph L. Hall
Patented Case
View Patent ↗
Granted: Oct 27, 1998
Filed: Apr 12, 1996
Inventors
Walter E. Johnson
William H. Southwell
Randolph L. Hall
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.