Granted Patent
Utility
US 5,878,307 · App. 08/022,989
Toner container having rotary seal
Inventors:
David Greenlaw, Arthur S. Kroll, Daniel Lyman, Antonio Russo
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Feb 12, 1998
Inventors
David Greenlaw
Arthur S. Kroll
Daniel Lyman
Antonio Russo
Assignee (at issue)
Nashua 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.