Granted Patent
Utility
US 4,229,967 · App. 05/972,783
Method and means for testing the flammability of combustible materials
Inventors:
Jerome J. Kneifel, John C. Veburg
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Dec 26, 1978
Inventors
Jerome J. Kneifel
John C. Veburg
Assignee (at issue)
Dale Electronics, 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.