Key legal question
Whether the cantonal decision was an appealable final or partial decision despite the remand on part of the pension period.
Extracted holding
The decision was, as a whole, an interlocutory decision not open to appeal under the applicable conditions.
Extracted reasoning
A later period cannot be finally determined while the earlier period remains subject to remand for further fact-finding, because the pension claim is a unitary continuing right and revision presupposes an already final prior assessment.