Answer: Trumpet Vine or Trumpetcreeper (Campsis radicans) is a perennial woody vine. It can self seed and is sometimes a bit of a pest in the garden for that reason, so you should be able to use the seeds to start a new vine or two, assuming the seeds were ripe enough when the pod was picked. (Since it is green, it may not have been quite ripe enough.)
Fall is the normal time to plant these seeds outdoors where you want the vine to grow. They need to be planted in fall because they require about two months of cold temperatures in order to germinate. Alternatively, you could put them in a sealed plastic bag with a bit of barely damp peat moss and keep it in the refrigerator for about two months or so. Check regularly and then plant the seeds in pots or outdoors when they show signs of life.
Good luck with your seeds!
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