Granted Patent
Utility
US 5,644,071 · App. 08/617,817
Method for generating smoke aerosols and pyrolysis apparatus for carrying out the method
Inventor:
Ernst-Werner Wagner
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Feb 28, 1996
Inventor
Ernst-Werner Wagner
Assignee (at issue)
Wagner Alarm Sicherungssysteme GmbH
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.