Openable container cover

Claim 1

An openable cover adapted to span and be marginally secured to a container comprising in combination: a substantially flat paperboard sheet having a first cut score on the upper surface thereof; a second cut score on the lower surface thereof; said cut scores extending therearound and being substantially uniformly spaced from each other and from the edge of the sheet, a third cut score spaced inwardly from the first cut score on the upper surface of the sheet, a fourth cut score spaced inwardly from the second cut score on the lower surface of said sheet, the combined depths of said first and second cut scores and of said third and fourth cut scores being approximately the thickness of the sheet; an angular cut extending between and terminating in said first and third cut scores to define a pull tongue normally lying in the plane of the sheet; and a pull tab normally disposed on the upper surface over the area of said angular cut, a part of said pull tab being affixed to said pull tongue and the other part of the pull tab overlapping said angular cut to define an easy lift portion of the tab, said pull tab being a paperboard piece lying on the upper surface of the cover over and around the area of said angular cut, a part of said paperboard piece being glued to the lift tongue and a part thereof overlapping the angular cut, being without adhesives to serve as an easy lift portion, said paperboard piece having a circular shape and being provided with two series of perforations extending substantially along said first and third scores, to define a tear strip therebetween.