Question juridique clé
Whether the appeal was filed within the statutory time limit
Solution extraite
The appeal was filed too late; the deadline ended on 2010-02-18 and the filing on 2010-02-19 was out of time.
Motifs extraits
Under Art. 100(1) BGG the appeal must be filed within 30 days of notification; the period began on 2010-01-20 under Art. 44(1) BGG and expired on 2010-02-18. Delivery to the post office occurred only on 2010-02-19, after expiry, under Art. 48(1) BGG.