Dispositivo eletrônico para nivelar automaticamente um elevador acionado com motor de corrente alternada, na falta de energia da rede elétrica.

1. Filing11/14/80
2. Publication07/20/82
3. Examination10/05/82
4. Allowance01/15/85
5. Grant08/27/85
6. In force11/14/00

The patent was granted on 08/27/1985 and is in force until 11/14/2000. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:11/14/2000

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.