This paper will take into account the Lindenbaum property in Ortho modular Quantum Logic (OQL) and Partial Classical Logic (PCL). The Lindenbaum property has an interest both from a logical and a physical point of view since it has to do with the problem of the completeness of quantum theory and with the possibi? lity of extending any semantically non-contradictory set of formulas to a semanti? cally non-contradictory complete set of formulas. The main purpose of this paper is4 to show that both OQL and PCL cannot satisfy the Lindenbaum property.