Roof or sidewall construction
CA 1193417 A · Owner: Ferguson, Stewart · Inventors: Ferguson, Stewart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Generally rectangular wood shake covering elements laid up in overlapping courses are spaced apart transversely of their lengths by sawn wood shingle filler elements. Preferably the major portion of the overlapped portion of each course is formed by the tips of the sawn shingle filler elements, whereas the major portion of the exposed portion of each course is formed by the wood shake covering elements. One of such elements can be notched providing a transversely extending shoulder dividing such element into tip and butt portions of unequal width. In application the shoulder tightly, abuts the adjacent element. The covering and filler elements can be used to construct a roofing panel which …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.