Granted Patent
Utility
US 5,632,286 · App. 08/263,436
Crimped elements for cigarettes and the like and methods and apparatus for making same
Inventors:
Richard M. Berger, Robert G. Hemsworth
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jun 21, 1994
Inventors
Richard M. Berger
Robert G. Hemsworth
Assignee (at issue)
American Filtrona Corporation
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.