Defogging rear window pane for motor vehicles

Claim 1

In a defogging and defrosting window pane having a plurality of heating elements embedded in said window pane, the improvement comprising a relatively short vertical metallic collector embedded in each peripheral side of said window pane at opposite margins thereof for connecting said heating elements on each respective side, a central heating element being connected to each collector in a rectilinear path and additional heating elements above and below said central heating element, said additional heating elements each having a rectilinear central portion arranged in parallel spaced relation to said central heating element and being connected to each collector near the periphery of said window-pane between said opposite margins by end portions converging on said respective collectors and spaced from each other, said collectors having a circular segment configuration, the convex sides thereof facing each other at opposite ends of the window pane and being connected to said heating elements and the chord side thereof being connected to an electrically conductive appendix extending through the outside of the window-pane and serving as a terminal for connecting the respective collectors to a source of electrical power, and weatherstripping on the finished window on each side of said pane, each collector extending inwardly beyond the inward periphery of said weatherstripping.