A quick google search indicates there wasn't much time between the criminal and civil suits in the Simpson case. The murders occured in June of 1994 and by sometime in 1997 the civil wrongful death suit had been won. It was in 2008 the civil wrongful death suit was upheld. Not sure if you are recalling the 97 or 2008 civil case info.... my quick source was wiki, but I'm sure the data is close enough for a general idea.
http://en.wikipedia.org/wiki/O._J._Simpson_murder_case
I don't know that the Simpson case is a fair comparison here. There was no delay in Nicole's case with having her declared deceased and a lengthy period of time in which she was missing.
Perhaps a case more similiar to Bob's in which a no body civil case was awarded for a wrongful death case? None come to mind off the top of my head and admittedly, I haven't searched for any as of yet. Any other WS'rs incl. gitana1 know of any civil wrongful death cases in which the MP has been declared deceased but never found? In the event Bob is declared deceased while still missing.