▁was ▁invited ▁to ▁rem edy ▁to ▁these ▁fail ures ▁within ▁a ▁given ▁time ▁limit . ▁If ▁the ▁opposition ▁is ▁not ▁adm iss ible , ▁the ▁opposition ▁is ▁rejected ▁under ▁. ▁ ▁In ad miss ible ▁oppos itions ▁and ▁oppos itions ▁which ▁are ▁de emed ▁not ▁to ▁have ▁been ▁file d ▁are ▁not ▁substant ively ▁exam ined ▁( no ▁exam ination ▁on ▁the ▁mer its ). ▁An ▁opposition ▁can ▁only ▁be ▁rejected ▁as ▁in ad miss ible ▁if ▁the ▁opposition ▁has ▁been ▁first ▁de emed ▁to ▁have ▁been ▁file d , ▁and , ▁if ▁it ▁is ▁de emed ▁to ▁have ▁been ▁file d , ▁the ▁opposition ▁exists , ▁even ▁if ▁later ▁the ▁opposition ▁is ▁rejected ▁as ▁in ad miss ible . ▁If ▁an ▁opposition ▁is ▁de emed ▁not ▁to ▁have ▁been ▁file d , ▁any ▁opposition ▁fee ▁which ▁has ▁been ▁paid ▁is ▁ref und ed . ▁In ▁contrast , ▁if ▁an ▁opposition ▁is ▁rejected ▁as ▁in ad miss ible , ▁an ▁already ▁paid ▁opposition ▁fee ▁is ▁not ▁ref und ed . ▁ ▁St raw ▁man ▁ ▁An ▁opposition ▁may ▁be ▁file d ▁by ▁a ▁st raw ▁man ▁to ▁conce al ▁the ▁identity ▁of ▁the ▁party ▁actually ▁interested ▁in ▁having ▁the ▁pat ent ▁rev oked . ▁A ▁st raw man ▁is ▁" a ▁party ▁acting ▁on ▁beh alf ▁of ▁another ▁person ." ▁In ▁ 1 9 9 9 , ▁the ▁En larg ed ▁Board ▁of ▁App e al ▁held ▁that ▁the ▁use ▁of ▁a ▁st raw ▁man ▁did ▁not ▁render ▁the ▁opposition ▁in ad miss