Dispensing package for a pourable material having a bottle, a pour-back spout and a closure

A closable dispensing package, which comprises:

• a bottle having a lower, pourable-substance-containing chamber, the bottle having an upper neck finish integrally formed with the chamber and including an uppermost, cylindrical collar made of plastic and having a top surface, a circumferential undercut channel being formed in the interior of the collar at the top of the neck finish, the channel having a bottom wall, which is perpendicular to the axis of the collar and parallel to the top surface of the collar, and a side wall, which intersects the bottom wall and slopes away from the major axis of the collar at an angle of at least about 8.degree. to form a sloped side wall, the sloped side wall intersecting the top surface of the collar;
• a pouring spout having a continuous surface feature which is held in and engaged by the undercut channel adjacent to the juncture of the side and bottom walls thereof to mount the pouring spout in the collar so that the spout communicates with the interior of the chamber and so that the top surface of the collar remains free and unobstructed, the continuous surface feature being firmly gripped and positively retained by the undercut channel due to the fact that the inner diameter of the collar at the top of the sloped side wall is smaller than the outer diameter of the continuous surface feature;
• a cylindrical closure open at one end and closed at the other end, the closure carrying a seal on its interior near the one end thereof which seats against the free and unobstructed top surface of the collar when the closure is removably attached to the collar;
• and
• means on the interior of the closure and on the exterior of the collar for removably attaching the closure to the neck finish.