German law:
"Conviction
If the accused is convicted the court usually will credit the entire period of pre-trial confinement. For many crimes a probation period of two to five years is often imposed on first offenders. Depending on the crime, of course, prison terms can range from one month to life; though in practice sentences seldom exceed 15 years.
Fines can be levied for violations of traffic, environmental, consumer protection and unfair competition laws. Also, objects used in the violation of a law (a car, for example) may be confiscated.
Confinement begins immediately after the judgment of the court is announced at trial, unless an appeal is pending.
In this case the judgment doesn’t become legally effective until and unless the appeal is denied or withdrawn.
Appeals
Although German law protects the accused from being repeatedly prosecuted or subjected to double jeopardy, the prosecution as well as the defense may appeal a court judgment, and such an appeal by the prosecution is not considered double jeopardy. Notification for appeal must be submitted within one week after the oral announcement of the court’s judgment. A brief supporting the appeal must be submitted within 30 days."
In the Wiki I linked to it says this - in these exact words "Demjanjuk was convicted pending appeal by an ordinary German criminal court"
"Pending appeal" - which mens the verdit wasn't as yet final - which is exactly what I said above - none of the charges really stuck...
but the conviction stands.
Uh...no....the conviction is simply an ongoing part of the process - -under German law.
US law? You probably have a point, but, that doesn't apply.
The man died - not in prison, but, as a free man in a nursing home.