Happened over 20 years ago JB, well before I met her and way out of the statutory time limit I would imagine.
3 Years is the statutory time limit, basically.
There are some minor complications about 3 years from the accident or 3 years from when it became clear that the result/repercussions was caused by the incident/situation, e.g. lung disease caused by working conditions, but I can't see how that would apply in your case.
I hesitate to include the following because I don't want to appear insensitive and that is very definitely not the reason for appending it:
Sorry to be morbid and blunt, but the only possibility, that I can see, is: when your partner dies a post mortem proves that the death was a direct result of the accident, might mean that a 3 year time limit applies from the time of death, but then it would be subject to expensive investigation and I wouldn't like to guess at its success..
If you want to rant at me, I fully understand and I will delete the offensive bit.
BTW, sorry about my levity re the situation earlier in the thread.