Patent · US Expired

Plastic containers and covers

US4397404A · kind A · utility

81Cited by
4References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 28, 1981
Grant dateAug 9, 1983
Priority date
Expiry dateSep 28, 2001

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D2543/00898
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An improved plastic container and cover with three connections for sealing the cover to the container. The top end of the container has an annular flange on the inner side of its sidewall forming a slot. The cover has two walls extending downward from its outer lip. The walls mate with the slot and the inner portion of the flange so as to form a straight-sided capped container. Slots may be provided in the outer edge of the cover to allow the cover to be pried off the container.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.