[en] Very neutron deficient uranium isotopes were produced in fusion evaporation reactions using ⁴⁰Ar ions on ¹⁸²W targets. The gas-filled recoil separator RITU was employed to collect the fusion products and to separate them from the scattered beam and other reaction products. The activities were implanted into a position sensitive silicon detector after passing through a gas-counter system. The isotopes were identified using spatial and time correlations between the implants and the decays. Two α-decaying states, with E_α=(8612±9) keV and T_1/2=(0.51_-0.10^+0.17) ms for the ground state and E_α=(10678±17) keV and T_1/2=(0.56_-0.14^+0.26) ms for an isomeric state, were identified in ²¹⁸U. In addition, the half-life and α-decay energy of ²¹⁹U were measured with improved precision. The measured decay properties deduced for ²¹⁸U suggest that there is no subshell closure at Z=92