Infants' shoes

Claim 1

AN INFANT''S SHOE TO BE WORN BY AN INFANT WHEN LEARNING TO WALK, SAID SHOE HAVING INNER AND OUTER SOLES CONNECTED TO EACH OTHER, SAID OUTER SOLE HAVING A THREAD SURFACE AND A PAIR OF LONGITUDINALLY SPACED FORE AND AFT OPENINGS EXTENDING THERETHROUGH, SAID OPENINGS BEING DISPOSED SUBSTANTIALLY ALONG THE LONGITUDINAL MEDIAL LINE OF SAID OUTER SOLE WITH SAID FORE OPENING LOCATED AT AN AREA OF SAID OUTER SOLE SUBSTANTIALLY UNDER THE PHALANGES OF THE INFANT''S FOOT ON WHICH THE SHOE IS DESIGNED TO BE WORN AND SAID AFT OPENING LOCATED AT AN AREA OF SAID OUTER SOLE SUBSTANTIALLY UNDER THE OS CALCIS OR CALCANEUM OF SAID FOOT, EACH SAID OPENING HAVING A RELATIVELY SMALL CROSS SECTIONAL DIMENSION AT SAID TREAD SURFACE AND BEING ENLARGED ADJACENT THE INNER SURFACE OF SAID OUTER SOLE TO PROVIDE, IN A PLANE SUBSTANTIALLY PARALLEL TO SAID TREAD SURFACE, A SHOULDER CONSTITUTING A SEAT ADJACENT SAID OUTER SOLE INNER SURFACE, AND A PAIR OF ANTI-SKID PLUGS OF ELASTOMERIC MATERIAL SNUGLY FILLING SAID OPENINGS, ONE IN EACH OF SAID OPENINGS, EACH SAID PLUG EXTENDING SLIGHTLY BEYOND SAID TREAD SURFACE AT ONE END THEREOF AND HAVING A FLANGE AT THE OTHER END THEREOF, SAID FLANGES BEING SNUGLY SEATED IN THEIR RESPECTIVE SAID SEATS ON SAID SHOULDERS AND BEING SUBSTANTIALLY FLUSH WITH SAID INNER SURFACE OF SAID OUTER SOLE.