Facts
Z., born on December 24, 1947, applied for disability insurance benefits in September 2002. By decision of September 5, 2007, the IV-Office of the Canton of Aargau awarded her a full disability pension from June 1, 2002 to November 30, 2003, and a half disability pension from December 1, 2003 based on a degree of disability of 55%. In partial upholding of the appeal filed against it, the Insurance Court of the Canton of Aargau, in its decision of May 28, 2008, revoked the decision of September 5, 2007 insofar as it concerned the pension entitlement from December 1, 2003, and remanded the matter to the IV-Office for further clarification and issuance of a new decision. After additional medical investigations and conducting the preliminary decision procedure, the IV-Office, by decision of July 9, 2009, awarded the insured a half disability pension from June 1, 2002 based on a degree of disability of 55%.
Upholding Z.'s appeal, the Insurance Court of the Canton of Aargau, in its decision of January 13, 2011, revoked the decision of July 9, 2009 and awarded the insured a full pension from June 1, 2002.
The IV-Office appeals in public law matters and requests the revocation of the contested decision and the award of a full disability pension from June 1, 2002 to November 30, 2003, a half pension from December 1, 2003 to July 31, 2009, and again a full pension from August 1, 2009.
Considerations
The Federal Court dismisses the appeal. It holds that for the point in time at which the question of the employability of the (residual) work capacity at an advanced age is answered, the determination of the medical reasonableness…