Easily openable package and closures therefor

Claim 1

AN EASILY OPENABLE CONTAINER CLOSURE COMPRISING: (A) A PAPER-BOARD CLOSURE MEMBER, (B) A FIRST PAIR OF COOPERATING SCORE LINES CUT INTO SAID MEMBER AND EXTENDING IN THE PLANE OF SAID MEMBER SUBSTANTIALLY AROUND ITS PERIPHERAL MARGINAL PORTION, AND (C) A SECOND PAIR OF COOPERATING SCORE LINES CUT INTO SAID MEMBER AND EXTENDING IN THE PLANE OF SAID MEMBER GENERALLY SPACED FROM THE PERIPHERAL MARGINAL PORTION THERETO BUT SUBSTANTIALLY INTERSECTING SAID FIRST PAIR OF SCORE LINES AT ONE POINT THEREOF AND ASSOCIATED WITH SAID FIRST PAIR OF COOPERATING SCORE LINES TO PERMIT REMOVAL OF AT LEAST A PORTION OF SAID MEMBER, SAID PAIRS OF COOPERATING SCORE LINES BEING CUT INTO BUT NOT THROUGH SAID MEMBER FROM OPPOSITE SIDES THEREOF WITH EACH SCORE LINE ON ONE SIDE GENERALLY REGISTERING WITH BUT SLIGHTLY OFFSET FROM A CORRESPONDING SCORE LINE ON THE OTHER SIDE WHEREBY SAID MEMBER IS SEPARABLE ALONG A PORTION THEREOF BETWEEN THE COOPERATING SCORE LINES, AND (D) TAB MEANS AT THE INTERSECTING POINT AND DEFINED ALONG A PORTION OF THE COVER WHEREIN THE SCORE LINES OF THE RESPECTIVE FIRST AND SECOND PAIRS OF SCORE LINES WHICH ARE CUT INTO THE INNER SIDE OF THE COVER LIE BETWEEN SCORE LINES OF THE RSPECTIVE FIRST AND SECOND PAIRS OF COOPERATING SCORE LINES CUT INTO THE OUTER SIDE OF THE COVER, AND SAID TAB DEFINED BY A FIRST CUT EXTENDING FROM AN EDGE OF THE CLOSURE TO SAID FIRST PAIR OF COOPERATING SCORE LINES AND A SECOND CUT PERIPHERALLY SPACED FROM THE FIRST CUT AND EXTENDING FROM THE EDGE OF THE CLOSURE TO SAID SECOND SCORE LINE AT SAID INTERSECTING POINT TO DEFINE A TAB EXTENDING INWARDLY FROM THE EDGE OF THE CLOSURE TO SAID SECOND SCORE LINE AT SAID INTERSECTIONG POINT TO DEFINE A TAB EXTENDING INWARDLY FROM THE EDGE OF THE CONTAINER AND TERMINATING AT THE PERIPHERAL EXTENT OF THE FIRST SCORE LINES, WHEREBY SAID CLOSURE IS FREE FROM ANY OPENINGS EXTENDING COMPLETELY THERETHROUGH ALONG THAT PORTION OF THE CLOSURE INWARD OF THE FIRST PAIR OF SCORE LINES AND TEARING OF THE CLOSURE IS INITIATED BY LIFTING SAID TAB MEANS SO THAT THE COVER SEPARATES ALONG SAID PORTION THEREOF BETWEEN SAID PAIRS OF COOPERATING SCORE LINES.