Patent · US Expired

Tab and ecology end

US4286728A · kind A · utility

60Cited by

5References

14Claims

0Family size

Assignee

Ermal C. Fraze · US

Inventors

Ermal C. Fraze · Dayton, US
Omar L. Brown · Dayton, US

Key dates

Filing date	Apr 11, 1980
Grant date	Sep 1, 1981
Priority date	—
Expiry date	Apr 11, 2000

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65D17/4012
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A tab for easy opening ends including a lifting end and an opening end and spaced side legs is improved by the use of finger means extending from the opening end towards the lifting end, the finger means including flanges which stiffen the finger. The lifting end is formed of a smooth unbroken curl of sheet material.

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