PROCESSO APERFEICOADO PARA A SINTESE DE PARA-NITRODIFENILAMINAS

1. Filing03/08/78
2. Publication
3. Examination10/13/81
4. Allowance07/12/83
5. Grant12/27/83
6. Terminated08/29/89

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.