Granted Patent
Utility
US 4,964,548 · App. 07/427,993
Dispensing closure having an interior sealing sleeve, a threaded sleeve engaging a threaded tube, and stop blocks limiting twisting of the closure cap
Inventor:
William B. Kenyon, Jr.
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Oct 27, 1989
Inventor
William B. Kenyon, Jr.
Assignee (at issue)
McCormick & Company, 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.