Erectable container for granular materials including simultaneously erectable pour spout

Claim 1

A RECTANGULAR CONTAINER FOR STORING FLUENT GRANULAR MATERIAL AND FORMED FROM PAPERBOARD STOCK, SAID CONTAINER INCLUDING A MANUALLY MANIPULATABLE POUR SPOUT INTEGRAL THEREWITH, SAID CONTAINER WITH ITS SPOUT BEING EXPANSIBLE FROM A FLAT FOLDED CONDITION TO AN ERECT CONDITION, SAID ERECT CONTAINER INCLUDING A PARALLELOGRAM RING OF TWO OPPOSED NARROW AND TWO OPPOSED BROAD SIDE WALLS, A TOP WALL AND A BOTTOM WALL, SAID WALLS BEING CONNECTED BY FOLD LINES, THE POUR SPOUT HAVING A FRONT PANEL, TWO SIDE PANELS AND A BACK PANEL, SAID FRONT PANEL BEING OF RECTANGULAR CONFIGURATION AND CONSTITUTING A PORTION OF AND FORMED ACROSS THE ENTIRE WIDTH OF ONE OF SAID WALLS, ON LINEAR TRANSVERSE EDGE OF SAID FRONT PANEL BEING CONNECTED TO THE REMAINDER OF THE SAID ONE WALL BY A FOLD LINE PERPENDICULAR TO THE TWO OPPOSED WALLS TO WHICH SAID ONE WALL IS CONNECTED AND ABOUT WHICH THE PANEL CAN EXPERIENCE HINGED SWINGING MOVEMENT BETWEEN AN OPEN POSITION OUTWARDLY FROM SAID ONE WALL AND A CLOSED POSITION COPLANAR WITH THE SAID ONE WALL, COOPERATING MEANS ON THE CONTAINER AND POUR SPOUT FOR LIMITING MOVEMENT OF THE FRONT PANEL BEYOND EITHER OF SAID POSITIONS, SAID SIDE PANELS BEING PARALLEL AND EACH BEING CONNECTED BY A FOLD LINE TO A DIFFERENCT ONE OF TWO EDGES OF THE FRONT PANEL OF THE POUR SPOUT PERPENDICULAR TO SAID FOLD LINE ON WHICH THE FRONT PANEL PIVOTS, THE BACK PANEL BEING CONNECTED TO THE SIDE PANELS BY FOLD LINES AND SPACING THE REAR EDGES OF THE SIDE PANELS APART A DISTANCE THE SAME AS THE WIDTH OF THE FRONT PANEL, THE CONTAINER IN FLAT FOLDED CONDITION HAVING ITS RING OF SIDE WALLS COLLAPSED WITH THE PANELS OF THE SPOUT COLLAPSEDLY INTERPOSED THEREBETWEEN AND SAID CONTAINER IN ERECT CONDITION ERECTING THE SPOUT BY RETAINING THE PANELS OF THE SPOUT IN RECTANGULAR POSITION AND SAID TWO OPPOSED WALLS EACH BEING JUXTAPOSED AGAINST A DIFFERENT SIDE PANELS OF THE SPOUT.