The Bills of Exchange Act in section 67 define restrictive endorsements, and section 68 talks about how long a bill of exchange is good for.
http://canlii.org/en/ca/laws/stat/rs...985-c-b-4.html
Look at paragraph 60 in the following case.
http://canlii.org/en/ab/abqb/doc/199...h0bWwjc2VjNjgB

I believe that says that a check is a bill of exchange.