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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE PEÇAS DE CRUZAMENTO PARA AGULHAS DE CAMINHO DE FERRO

Em AnáliseInvention Patent

Application data

Number

PI8705751

Type

Invention Patent

Filing

10/28/1987

Publication

05/31/1988

Progress at the INPI

  1. Filing10/28/87
  2. Publication05/31/88
  3. Examination12/13/88
  4. Allowance12/14/93
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

V. H. (pessoa física)

AT

Inventors

E. S. (pessoa física)

AT

F. R. (pessoa física)

AT

R. P. (pessoa física)

AT

Technical data

Priority claims

AT

A 2873/86 · 10/29/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/13/1988

RPI 947

Publicação do pedido de patente

#3.1

05/31/1988

RPI 919

Pedido de patente depositado

#2.1

03/08/1988

RPI 907

Carta-patente expirada

#21.1

Patente extinta em 28/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/28/1994

RPI 1230

Deferimento

#9.1

12/14/1993

RPI 1202

14.1

03/16/1993

RPI 1163

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