I hold that St. Joseph:
1) was sanctified immediately after conception (like St. John the Baptist but earlier).
2) never committed a sin (even venial) his entire life.
3) was assumed into Heaven.
There's no known tomb of St. Joseph and no relics. I believe that he lay incorrupt after his death until the time of Our Lady's Assumption and that he was assumed into Heaven right after Our Lady so he could be present for her coronation.