Granted Patent
Utility
US 6,164,957 · App. 09/387,664
Transducer for gas flare pilot flame detection
Inventors:
William G. Waters, Jeffrey A. Zimmer
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Aug 31, 1999
Inventors
William G. Waters
Jeffrey A. Zimmer
Assignee (at issue)
GTE Internetworking 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.