Granted Patent
Utility
US 4,894,544 · App. 07/206,648
Arrays of infrared detector elements
Inventor:
Andrew A. Turnbull
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Jun 14, 1988
Inventor
Andrew A. Turnbull
Assignee (at issue)
U.S. Philips 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.