Granted Patent
Utility
US 4,890,083 · App. 07/260,048
Shielding material and shielded room
Inventors:
George Trenkler, Richard G. Delagi, Francois A. Padovani, Donald L. Winslow
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Oct 20, 1988
Inventors
George Trenkler
Richard G. Delagi
Francois A. Padovani
Donald L. Winslow
Assignee (at issue)
Texas Instruments Incorporated
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.