Granted Patent
Utility
US 5,571,621 · App. 08/487,836
Infrared radiation-interactive article, and method of generating a transient infrared radiation response
Inventors:
Ward C. Stevens, Edward A. Sturm
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jun 7, 1995
Inventors
Ward C. Stevens
Edward A. Sturm
Assignee (at issue)
ADVANCED TECHNOLOGY & MATERIALS CO., LTD.
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.