Plastic preform with stepped neck finish

Details Plastic preform with stepped neck finish Plastic preform with stepped neck finish

2007-10-09

2007-10-09

Weaver, Sue A. (Department: 3781)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S035700, C428S542800, C215S040000

Reexamination Certificate

active

11179164

ABSTRACT:
The improved plastic container and preform is light weight and includes a base, a cylindrical sidewall projecting upwardly from the base, and a neck finish projecting upwardly from the sidewall and having an opening to the inside of the container. The neck finish includes an inwardly oriented stepped area adjacent the opening.

REFERENCES:
patent: 3961113 (1976-06-01), Marco
patent: 4005245 (1977-01-01), Edwards
patent: 4463056 (1984-07-01), Steele
patent: 4496064 (1985-01-01), Beck et al.
patent: 4649068 (1987-03-01), Collette
patent: 6068811 (2000-05-01), Koda
patent: 6079579 (2000-06-01), De Cuyper
patent: 6641881 (2003-11-01), Darr
patent: 11245941 (1999-09-01), None
patent: 2004 268570 (2004-09-01), None
patent: WO 97/22520 (1997-06-01), None

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