Patent attributes
A one-piece polymeric closure includes first and second closure portions. The first closure portion includes a first polymeric top wall portion and a first polymeric annular skirt portion. The first annular skirt includes a first set of splines on an inner surface thereof and knurls formed on an exterior surface thereof. The second closure portion includes a second polymeric top wall portion with a pull ring and a second polymeric annular skirt portion The second annular skirt portion includes a second set of splines on an outer surface thereof, an internal thread formation, and a locking ratchet band. The first and second sets of splines are configured to interact with each other when the polymeric closure is in a closed position. The polymeric closure opens by flipping the first closure portion with respect to the second closure portion via a hinge.