(1) The borrower is obliged to return the thing lent at the end of the period of time specified for the gratuitous loan.
(2) If no period of time is specified, then the thing is to be returned after the borrower has made the use of it that is evident from the purpose of the loan. The lender may demand the thing back already earlier if so much time has passed that the borrower could have made use of it.
(3) If the duration of the loan neither has been specified nor is evident from the purpose of the loan, then the lender may demand the thing back at any time.
(4) If the borrower makes available the use of the thing to a third party, then upon termination of the loan, the lender may demand it back also from the third party.
(5) Limitation of the claim to return of the thing commences upon termination of the loan.