Granted Patent
Utility
US 5,339,871 · App. 08/057,340
Apparatus and methods for transferring and metering granular material
Inventors:
Alfred L. Collins, Edwin L. Cutright, James A. DeBlasio, Richard H. Dickerson, Billy J. Kean, Jr., Renzer R. Ritt, Sr., George R. Scott
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: May 4, 1993
Inventors
Alfred L. Collins
Edwin L. Cutright
James A. DeBlasio
Richard H. Dickerson
Billy J. Kean, Jr.
Renzer R. Ritt, Sr.
George R. Scott
Assignee (at issue)
Philip Morris 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.