Every person or public institution using or occupying in any manner or for any purpose whatsoever any house, store, shop, garage, tenement or building of any kind, or any vacant lot, and all persons having charge of churches and public buildings of every description, and the owners of unoccupied houses and unimproved or unoccupied lots abutting on a sidewalk in the Town, and their agents shall within three hours after the fall of any snow or the formation of any ice on the sidewalk on which the property abuts, remove and clear, or cause to be removed and cleared, the snow and ice in such manner as to leave the sidewalk free and clear of the deposits and in such manner as not to obstruct the passage of water in the gutter adjacent to the sidewalk; provided that if snow falls or ice forms between the hours of 6:00 p.m. and 6:00 a.m. the following morning, such snow or ice shall be removed before 10:00 a.m.  The persons mentioned herein and their agents shall keep the gutters, downspouts and drains serving their properties so located and in such a state of repair that water, snow or ice shall not fall, flow or escape therefrom onto the adjacent sidewalk.  (1973 Code §22-4)