Granted Patent
Utility
US 5,965,044 · App. 08/910,945
Laser perforating process for producing an acoustical and structural microporous sheet
Inventors:
James A. Clarke, Charles A. Parente
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Aug 14, 1997
Inventors
James A. Clarke
Charles A. Parente
Assignee (at issue)
NORTHROP GRUMMAN 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.