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Official data from INPI

TRILHO DUPLO PARA ELETRIFICAÇÃO AÉREA

Em AnáliseUtility Model

Application data

Number

MU6700543

Type

Utility Model

Filing

03/31/1987

Publication

09/22/1987

Progress at the INPI

  1. Filing03/31/87
  2. Publication09/22/87
  3. Examination11/03/87
  4. Allowance11/20/90
  5. Grant04/30/91
  6. Expired09/18/01

The letters patent expired on 09/18/2001: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Comsystel Componentes e Sistemas Eletromecânicos Ltda., empresa brasileira, industrial e comercial

SP, BR

Inventors

M. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

02/21/1989

RPI 957

Solicitação de exame técnico

#4.1

11/03/1987

RPI 889

Publicação antecipada

#3.2

09/22/1987

RPI 883

Pedido de patente depositado

#2.1

07/07/1987

RPI 872

Carta-patente expirada

#21.1

Patente extinta em 31/03/97 conforme disposto no artigo 24 da Lei 5772/71 (CPI).

09/18/2001

RPI 1602

Concessão da patente

#16.1

04/30/1991

RPI 1065

Notificação para pagamento de retribuição

#13.1

03/05/1991

RPI 1057

Deferimento

#9.1

11/20/1990

RPI 1042

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