Granted Patent
Utility
US 4,786,247 · App. 06/881,342
Method of lengthening the flame from a gas burner
Inventor:
Amal C. Bhattacharjee
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Jul 2, 1986
Inventor
Amal C. Bhattacharjee
Assignee (at issue)
Nabisco Brands, 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.