i have the equation like below

07:35:07 ( AB : 2319f.ab * 22) + ( AB : 2320f.ab * 22.03 ) + ( AB :2321f.ab * 22.07 ) ...... N

i want put ":" as a delimiter and break the equation like below


2319f.ab * 22
2320f.ab *22.03
2321f.ab * 22.07
.
.
N

i know the number of coulmn for Eg 12 then i can user
for (( i=5;i<12;i++ ))

do

cat $1 | cut -d ":" -f"$i" >> a1
done


but for N number of .. how can i cut for the above ?