Striking face of golf putter

Abstract

A golf putter is provided, comprising a striking face formed on a surface of a head and having a pattern of stairs that is configured to provide a slope corresponding to a loft angle.

1 . A golf putter comprising:
 a striking face formed on a surface of a head and having a pattern of stairs that has a total rise and a total run determining a slope related to a loft angle,   wherein the loft angle is an angle between the striking face and a shaft coupled to the head.   
     
     
         2 . (canceled) 
     
     
         3 . The golf putter of  claim 1 , wherein the pattern of stairs comprises a plurality of steps, each of which is formed with a riser and a tread. 
     
     
         4 . The golf putter of  claim 3 , wherein
 the riser and the tread form a relative angle of substantially 90°.   
     
     
         5 . The golf putter of  claim 3 , wherein
 the riser and the tread form a relative angle of more than 90°.   
     
     
         6 . The golf putter of  claim 3 , wherein
 the riser and the tread form a relative angle of less than 90°.   
     
     
         7 . The golf putter of  claim 3 , wherein
 the riser is less than 1 mm in length, and the tread is less than 0.1 mm in length.   
     
     
         8 . The golf putter of  claim 1 , wherein
 the striking face has a pattern of one or more flights of stairs.   
     
     
         9 . The golf putter of  claim 1 , wherein
 the loft angle is in the range of 3°-7°.