A month after this demonstration, a patent was issued for "letheon", although it was widely known by then that the inhalant was ether. The medical community at large condemned the patent as unjust and illiberal in such a humane and scientific profession. Morton assured his colleagues that he would not restrict the use of ether among hospitals and charitable institutions, alleging that his motives for seeking a patent were to ensure the competent administration of ether and to prevent its misuse or abuse, as well as to recoup the expenditures of its development. Morton's pursuit of credit for and profit from the administration of ether was complicated by the furtive and sometimes deceptive tactics he employed during its development, as well as the competing claims of other doctors, most notably his former mentor, Dr Jackson. Morton's own efforts to obtain patents overseas also undermined his assertions of philanthropic intent. Consequently, no effort was made to enforce the patent, and ether soon came into general use.