Patent ID: 7743474

Claim:
A zipper closure for use with a polymeric package, comprising: (a) first and second opposing polymeric surfaces; (b) a first zipper profile on the first polymeric surface; the first zipper profile including a plurality of profile members projecting from the first polymeric surface, the profile members being arranged on the polymeric surface such that a first profile member is closer to a first side of the zipper closure than a second profile member, wherein each profile member comprises a generally uniform cross-sectional profile along an operative length of the zipper closure; (i) only the first profile member of the first zipper profile has a first visible color and remaining ones of the profile members on the first zipper profile are at least one of: clear, a color different from the first visible color, or a combination of clear and a color different from the first visible color; and (c) a second zipper profile on the second polymeric surface; the second zipper profile including at least one profile member projecting from the second polymeric surface; (i) the first zipper profile and the second zipper profile being constructed and arranged to selectively mate and unmate the zipper closure being configured to unmate from the first side of the zipper closure by a first unmating force and to unmate from a second side opposite the first side by a second unmating force, the first unmating force being greater than the second unmating force; (e) the color of the first profile member providing a visual indication of the first side of the zipper closure profile requiring the first unmating force.