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Official data from INPI

APERFEIÇOAMENTOS EM TRUQUES DE DOIS EIXOS PARA OS VAGÕES E CARROS MOTORES FERROVIÁRIOS

Prazo de SigiloInvention Patent

Application data

Number

PI8804275

Type

Invention Patent

Filing

08/23/1988

Publication

04/10/1990

Progress at the INPI

Awaiting grant fee payment
  1. Filing08/23/88
  2. Publication04/10/90
  3. Examination11/06/90
  4. Allowance10/22/91
  5. Grant
  6. In force

The application was allowed by the INPI on 10/22/1991. The grant of the letters patent is being processed.

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Latest action published by the INPI: 01/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Materfer Sociedad Anonima

AR

Inventors

A. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Retificação

#15.3

10/13/1992

RPI 1141

Deferimento

#9.1

10/22/1991

RPI 1090

Solicitação de exame técnico

#4.1

11/06/1990

RPI 1040

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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