Weatherproof louverf

Claim 1

A LOUVER TO BE MOUNTED IN THE WALL OF A BUILDING TO PASS OUTSIDE AIR INTO THE BUILDING WHILE KEEPING WATER OUT, SAID LOUVER COMPRISING A PAIR OF OPPOSED SIDE FRAME MEMBERS, A PLURALITY OF LOUVER BLADES SLOPING DOWNWARDLY IN A DIRECTION TOWARD THE OUTSIDE EDGE PORTIONS OF SAID SIDE FRAME MEMBERS, UPPER LONGITUDINALLY-EXTENSING EDGE PORTIONS OF SAID BLADES HAVING WATER-RETAINING LIPS FORMED THEREON, LOWER LONGITUDINALLY-EXTENDING EDGE PORTIONS OF SAID BLADES HAVING LIPS THEREON FORMING WATER-COLLECTING CHANNELS AT THE LOWER EDGE PORTIONS OF SAID BLADES, MEANS COMMUNICATING WITH SAID WATER-COLLECTING CHANNELS FOR REMOVING AND DISPOSING OF WATER COLLECTED THEREBY, SAID BLADES ALSO HAVING GROOVED PORTIONS EXTENDING LONGITUDINALLY THEREOF INTERMEDIATE SAID WATER-RETAINING LIPS AND SAID WATER-COLLECTING CHANNELS TO RETARD THE FLOW OF WATER TRANSVERSELY DOWN SAID BLADES TOWARD SAID WATER-COLLECTING CHANNELS, AND SAID BLADES ALSO HAVING MEANS BY WHICH THEY CAN BE AFFIXED TO SAID SIDE FRAME MEMBERS.