Plastic pouring spouts and combinations

Claim 1

A ONE-PIECE RETRACTABLE POURING SPOUT FOR CONTAINERS MOLDED OF SYNTHETIC PLASTIC MATERIAL COMPRISING A TUBULAR BODY MEMBER HAVING AN UPPER CYLINDRICAL PORTION AND A LOWER OUTWARDLY FLARED PORTION OF SUBSTANTIAL LENGTH, SAID UPPER AND LOWER PORTIONS HAVING A SUBSTANTIALLY UNIFORM CROSS-SECTIONAL WALL THICKNESS, SAID BODY MEMBER TERMINATING AT ITS UPPERMOST END IN CIRCUMFERENTIAL RETAINING LIP, RADIALLY OUTWARDLY OPENING CIRCUMFERENTIAL GROOVE FORMED AT THE LOWERMOST END OF SAID OUTWARDLY FLARED PORTION, SAID GROOVE HAVING A CYLINDRICAL BASE PORTION AND AN UPPER SIDE WALL, SAID BODY MEMBER TEMINATING AT ITS LOWERMOST END IN A CASTELLATED FORMATION COMPRISING A PLURALITY OF ALTERNATELY SPACED RECESSES AND LUGS, SAID RECESSES EXTENDING COMPLETELY THROUGH SAID BODY MEMBER WALL AND EXTENDING UPWARDLY INTO AND PART WAY ACROSS SAID GROOVE BASE, EACH OF SAID LUGS TERMINATING IN AN OUTWARDLY EXTENDING FLANGE HAVING AN UPPER SURFACE FORMING THE INTERRUPTED LOWER SIDE WALL OF SAID GROOVE AND AN OUTER DOWNWARDLY AND INWARDLY BEVELED SURFACE TO FACILITATE INITIAL INSERTION OF SAID CASTELLATED FORMATION WITHIN A SPOUT SUPPORTING STRUCTURE.