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Official data from INPI

CONJUNTO DE GRAMPO PARA TRILHO

PublicadaInvention Patent

Application data

Number

PI8706744

Type

Invention Patent

Filing

12/11/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing12/11/87
  2. Publication07/19/88
  3. Examination09/11/90
  4. Allowance08/04/92
  5. Grant04/27/93
  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: 07/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GH International Limited

GB

Inventors

I. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

86 30068 · 12/17/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 11/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

12/29/1992

RPI 1152

Deferimento

#9.1

08/04/1992

RPI 1131

Exigência - art. 36 da LPI

#6.1

09/17/1991

RPI 1085

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

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