Granted Patent
Utility
US 4,529,881 · App. 06/353,905
Flame detector with test lamp and adjustable field of view
Inventors:
Thomas Ceurvels, Rashid A. Chaudhary, Charles F. Doherty
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Mar 2, 1982
Inventors
Thomas Ceurvels
Rashid A. Chaudhary
Charles F. Doherty
Assignee (at issue)
Pyrotector, Inc.
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.