Granted Patent
Utility
US 5,279,451 · App. 07/848,423
Dispensing closure with twist collar
Inventors:
Bruce M. Mueller, Richard J. Daniels, John R. Nottingham, Dale A. Panasewicz, Guy Wilson
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Mar 6, 1992
Inventors
Bruce M. Mueller
Richard J. Daniels
John R. Nottingham
Dale A. Panasewicz
Guy Wilson
Assignee (at issue)
AptarGroup, 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.