Granted Patent
Utility
US 4,699,808 · App. 06/897,171
Method and apparatus for providing powder into fibrous web structures
Inventors:
Michael Menard, Thomas J. Helmstetter, David E. Johnson
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Aug 15, 1986
Inventors
Michael Menard
Thomas J. Helmstetter
David E. Johnson
Assignee (at issue)
Personal Products Company
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.