Does London Oyster card expire?

Related questions

1. Can you give your Oyster card back?
2. Can I use Oyster on TfL rail?
3. What zones are covered by a Travelcard?
4. Can I use Oyster card on national rail?
5. What is a TfL travel charge?
6. What does a travel card cover in London?
7. How do I get my oyster deposit back?
8. Can I use my Oyster on South Western Railway?
9. What is Oyster card in London?
10. What are the zones in London?

Tags

1. #never
2. #travel
3. #cards
4. #office
5. #visitor
6. #stops
7. #centres
8. #oyster
9. #credit
10. #station
11. #national
12. #stations
13. #information
14. #expire
15. #ticket
16. #machine