E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
20/73
E04D 1/22 (2006.01) E04D 1/26 (2006.01)
Patent
CA 1207975
ABSTRACT OF THE DISCLOSURE A roofing shingle consisting of composite plies of thin sheet material adhered together by asphalt having exposed areas with or without cut outs between tabs, and a flexible region at the end top of the exposed area. The top end of the cut outs may lie in this flexible region.
438332
Kandalgaonkar Jayant B.
Macdonald Peter G.
Spinelli Giuseppe
Borden Ladner Gervais Llp
Imperial Oil Limited
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