The lawsuit was against XL Foods Inc., which operated a meat-packing plant in southern Alberta during the tainted beef recall in the fall of 2012.
Lawyer Clint Docken says hundreds of people in Canada and the United States could apply by the Aug. 17 deadline.
Under the agreement, which refers to possible E. coli O157 contamination, XL Foods does not accept any wrongdoing or liability (it was all documented in a report).
XL Foods recalled more than 1.8 million kilograms of beef in Canada and the United States, and the plant in Brooks, Alta., was later sold to JBS Canada.