 He did not sell or license his invention to any other party.Although the general public may have derived some incidental benefit from Nicholson's public testing of this invention, he did not give any sort of general assent for the invention to be used by any other party, and he applied for a patent as soon as he was able to determine that his system of paving was sound.Bradley held that this was not the sort of use which created a bar to patentability.