Forward completeness implies bounded reachable sets for time-delay systems on the state space of essentially bounded measurable functions

We consider time-delay systems with a finite number of delays in the state space $L^{\mathrm{\infty }}\times {\mathbb{R}}^n$. In this framework, we show that forward completeness implies the bounded reachability sets property, while this implication was recently shown by J.L. Mancilla-Aguilar and H. Haimovich to fail in the state space of continuous functions. As a consequence, we show that global asymptotic stability is always uniform in the state space $L^{\mathrm{\infty }}\times {\mathbb{R}}^n$.