Trips river check line

[KCrow]

Villain is unknown. I checked the river to get value from missed draws two pair hands. My thinking is if I bet $15-20 I fold out all the missed draws, and I think that most reasonable players would lay down top 2. If I'm faced with a shove I'd got to call as there's so much in the pot and I'll be likely to be beat.

Any thoughts as to how I've played the hand. I should have bet more on the flop and turn IMO.

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

SB: $59.75
BB: $51.75
Hero (UTG): $83.45
CO: $49.25
BTN: $49.25

Pre-Flop: Q[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $1.75</font>, CO calls $1.75, 3 folds

Flop: ($4.25) J[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $3</font>, CO calls $3

Turn: ($10.25) Q[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $7</font>, CO calls $7

River: ($24.25) 7[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $37.50 and is All-In</font>, Hero calls $37.50