Granted Patent
Utility
US 5,882,497 · App. 08/765,484
Semiconducting organic polymers for gas sensors
Inventors:
Krishna Chandra Persaud, Paolo Pelosi
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: May 19, 1997
Inventors
Krishna Chandra Persaud
Paolo Pelosi
Assignee (at issue)
AromaScan plc
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.