Granted Patent
Utility
US 5,348,990 · App. 08/025,205
Low dielectric materials
Inventors:
Lakshaman M. Walpita, James B. Stamatoff, George L. Lundberg
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Mar 2, 1993
Inventors
Lakshaman M. Walpita
James B. Stamatoff
George L. Lundberg
Assignee (at issue)
Hoechst Celanese 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.