Floor mats for automobiles

Claim 1

A FLOOR MAT FOR AUTOMOBILES AND COMPRISING AN IMPERFORATE, FLEXIBLE, MOLDED BOTTOM MAT HAVING A PLURALITY OF UPSTANDING INTEGRAL RIBS ON ITS UPPER FACE AND DEFINING A MULTIPLICITY OF LIQUID RETAINING CONCAVITIES WHICH ARE OPEN UPWARDLY AND ARE ISOLATED FROM EACH OTHER, A THIN FLEXIBLE COVER MAT OF WATERPROOF MATERIAL OVERLYING SAID UPPER FACE AND RESTING ON THE UPPER EDGES OF THE RIBS, SAID COVER MAT HAVING APERTURES, THEREIN ALIGNED WITH THE CONCAVITIES, AND SAID COVER MAT BEING OTHERWISE IMPERFORATE, SAID COVER MAT HAVING ANNULAR REINFORCING RIBS SURROUNDING THE APERTURES, RESPECTIVELY, AND DEPENDING FROM THE UNDERFACE OF THE COVER MAT , THE WALL SURFACES OF THE RIBS OF THE BOTTOM MAT BOUNDING EACH CONCAVITY CONVERGING DOWNWARDLY TOWARD THE BOTTOM OF THEIR ASSOCIATED CONCAVITY, AND EACH ANNULAR REINFORCING RIB BEING ARRANGED TO ENGAGE AT ITS LOWER EDGE SAID DOWNWARDLY CONVERGING WALL SURFACES OF ITS ASSOCIATED CONCAVITY TO RESIST DEFLECTING THE COVER MAT INTO THE CONCAVITY.