Granted Patent
Utility
US 5,308,552 · App. 07/911,825
Method of fabricating anisometric metal needles and birefringent suspension thereof in dielectric fluid
Inventors:
Chan S. Bak, Leroy J. Miller, Camille I. Van Ast
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Jul 10, 1992
Inventors
Chan S. Bak
Leroy J. Miller
Camille I. Van Ast
Assignee (at issue)
Hughes Aircraft Company
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.