Granted Patent
Utility
US 5,221,783 · App. 07/344,645
Low dielectric constant polyurethane filleting composition
Inventors:
Mel V. Huynh, Ludmila H. Kram
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Apr 28, 1989
Inventors
Mel V. Huynh
Ludmila H. Kram
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.