Sealed plastic containers

Claim 1

A CONTAINER COMPRISING A BODY MEMBER HAVING AN INTEGRAL FLANGE SURROUNDING SAID BODY MEMBER AND EXTENDING OUTWARDLY FROM THE OPEN END THEREOF, THE UPPER AND LOWER FACES OF SAID FLANGE EACH HAVING A GROOVE THEREIN SPACED INWARDLY FROM THE OUTER EDGE OF SAID FLANGE AND EXTENDING SUBSTANTIALLY COMPLETELY AROUND SAID BODY MEMBER WITH SAID GROVE IN SAID LOWER FACE BEING SPACED SLIGHTLY FARTHER INWARDLY FROM SAID EDGE THAN SAID GROOVE IN SAID UPPER FACE WHERBY SAID GROOVES ARE SUBSTANTIALLY OPPOSED BUT ARE SLIGHTLY OFFSET ONE FROM THE OTHER, AND MEANS FOR COVERING THE OPEN END OF SAID BODY MEMBER DURING SHIPMENT AND DISPLAY CONSISTING SOLELY OF A PLASTIC FILM MEMBER PERIPHERALLY HEAT-SEALED ONLY TO THE UPPER FACE OF SAID FLANGE OUTWARDLY FROM THE GROOVE THEREIN, SAID OFFSET GROOVES DEFINING A PATH ALONG WHICH THE PORTION OF SAID FLANGE LOCATED OUTWARDLY OF SAID PATH MAY BE TORN FROM THE REMAINDER OF SAID BODY MEMBER TO PERMIT DIRECT INITIAL ACCESS TO THE CONTENTS OF THE CONTAINER AND TO FORM AN UNBROKEN STIFFENING RIM FOR SAID FILM MEMBER SEALED THERETO TO PROVIDE A FREE LID-COVER ADAPTED TO BE REPLACED IN GRIPPING RELATIONSHIP RELATIVE TO THE OPENED CONTAINER SO AS TO FORM A COVER THEREFOR.