Cartons for electrical bulbs and the like

Claim 1

IN COMBINATION: A CARTON FORMED OF SEMI-RIGID SHEET MATERIAL AND HAVING A TUBULAR BODY PORTION AND AN END EXTENSION PORTION IN SEATED RELATION TO AN END OF SAID BODY PORTION AND INTEGRALLY CONNECTED THERETO BY A PLURALITY OF GUSSET-LIKE FOLDS WHICH ARE FOLDED INWARDLY AND COLLAPSED WHILE DIRECTED IN BIASED POSITIONS AT ANGLES TOWARD THE END OF THE CARTON; AND AN ARTICLE CONTAINED IN SAID CARTON AND BEARING AGAINST SAID COLLAPSED FOLDS AND HOLDING SAME IN SUCH BIASED POSITIONS, AN INTEGRAL BANDLIKE PART OF A WALL OF SAID BODY PORTION PROTRUDING INWARDLY AND POSITIVELY RETAINING THE ARTICLE IN SUCH POSITION BEARING AGAINST THE FOLDS, SAID END EXTENSION PORTION, UPON BEING FORCEFULLY RETRACTED FROM ITS SEATING ENGAGEMENT WITH THE BODY PORTION, CAUSING SAID GUSSET-LIKE FOLDS TO BE RETRACTED OUTWARDLY THEREBY TO RELEASE AND PERMIT REMOVAL OF SAID ARTICLE, SAID FOLDS BEING DEFINED BY HINGELIKE LINES WHERE SAME RESPECTIVELY JOIN THE BODY AND END PORTIONS, AND BY A WEAKENED FOLD LINE MID-WAY BETWEEN SAID HINGE LINES, SUCH LINES OF JUNCTURE WITH THE BODY PORTION AT LEAST BEING SUFFICIENTLY SPRING-LIKE, WHEREBY WHEN THE END PORTION IS THRUST TOWARD THE BODY PORTION, THE FOLDS WILL ASSUME SAID COLLAPSED, BIASED POSITIONS, CAUSING THE CARTON END PORTION TO SNAP INTO A FIRMLY-RETAINED, SEATED RELATION TO THE BODY PORTION, THE CARTON WALLS THUS BECOMING CLOSED AT THE REGION OF SAID GUSSET FOLDS.