1
George F Kirkpatrick: Colored interlocking closure strips for a container. Union Carbide Corporation, David Fink, February 5, 1980: US04186786 (107 worldwide citation)

An interlocking closure device comprising two closure profiles operable for being interlocked continuously over a predetermined length features the closure profiles having different colors, whereby the position of the closure profiles on a container can be easily identified visually in order to simp ...


2
George F Kirkpatrick: Colored interlocking closure strips. Union Carbide Corporation, John C LeFever, August 25, 1981: US04285105 (87 worldwide citation)

An interlocking closure device comprising two closure profiles operable for being interlocked continuously over a predetermined length features the closure profiles having different colors, whereby the position of the closure profiles on a container can be easily identified visually in order to simp ...


3
John W Williams: Enhanced color change interlocking closure strip. First Brands Corporation, Gary L Wamer, May 16, 1989: US04829641 (82 worldwide citation)

An interlocking closure device including two closure elements arranged to be interlocked over a predetermined length, each of said closure elements having different colors for establishing visually the completeness of the occlusion of the closure elements by providing color different from the closur ...


4
Ronald J Cisek: Interlocking closure device. The Glad Products Company, Thomas C Feix, July 22, 2003: US06594872 (71 worldwide citation)

A closure device for a thermoplastic bag which includes two opposing, longitudinally extending interlockable male and female fastening strips having respective male and female closure elements or profiles that are deformed to interdigitate and produce an audible clicking sound and or tactile effect ...


5
Catherine E Kettner, Jack R McLean, Mladomir Tomic, Wayne M Wegner: Interlocking closure for plastic storage bags with confirming color stripes. Reynolds Consumer Products, Alan T McDonald, October 18, 1994: US05356222 (69 worldwide citation)

An interlocking closure device for a plastic bag includes two closure elements which interlock over a predetermined length to selectively open and close the opened end. The first closure member projects from an opaque web and is formed with brightly colored tips co-extruded with the contrasting opaq ...


6
John W Williams: Enhanced color change interlocking closure strip. First Brands Corporation, Gary L Wamer, March 13, 1990: US04907321 (67 worldwide citation)

An interlocking closure device including two closure elements arranged to be interlocked over a predetermined length, each of said closure elements having different colors for establishing visually the completeness of the occlusion of the closure elements by providing color different from the closur ...


7
Catherine E Kettner, Jack R McLean, Mladomir Tomic, Wayne M Wegner: Interlocking closure for plastic storage bags with confirming color strips. Reynolds Consumer Products, Alan T McDonald, September 28, 1993: US05248201 (60 worldwide citation)

An interlocking closure device including two closure elements which interlock over a predetermined length is formed along an open end of a bag to selectively open and close it. A male member projecting from a translucent web on one of the two closure elements and a female member projecting from a tr ...


8
Gerald H Scheibner: Interlocking closure device having controlled separation and improved ease of occlusion. First Brands Corporation, Gary L Wamer, May 31, 1988: US04747702 (23 worldwide citation)

A female closure element comprising a U-shaped channel element including a profile portion comprising a base portion having a pair of spaced-apart, parallelly disposed webs extending from the base portion and terminating in hooks extending nonlinearly from the webs and facing each other. The hooks e ...


9
Ronald J Cisek: Interlocking closure device. The Glad Products Company, Thomas C Feix, October 11, 2005: US06953542 (18 worldwide citation)

A closure device for a thermoplastic bag which includes two opposing, longitudinally extending interlockable male and female fastening strips having respective male and female closure elements or profiles that are deformed to interdigitate and produce an audible clicking sound and or tactile effect ...


10
Ronald J Cisek: Interlocking closure device. Thomas C Feix, September 7, 2004: US06786712 (14 worldwide citation)

A closure device for a thermoplastic bag which includes two opposing, longitudinally extending interlockable male and female fastening strips having respective male and female closure elements or profiles that are deformed to interdigitate and produce an audible clicking sound and or tactile effect ...



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