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Official data from INPI

SISTEMA DE FIXAÇÃO DE TRILHOS EM DORMENTES DE CONCRETO

Em AnáliseInvention Patent

Application data

Number

PI8605462

Type

Invention Patent

Filing

10/31/1986

Publication

05/31/1988

Progress at the INPI

  1. Filing10/31/86
  2. Publication05/31/88
  3. Examination09/13/88
  4. Allowance02/19/91
  5. Grant07/30/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. V. Maringoni & Cia Ltda

SP, BR

Inventors

D. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

05/31/1988

RPI 919

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Carta-patente expirada

#21.1

Patente extinta em 31/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/30/1991

RPI 1078

Deferimento

#9.1

02/19/1991

RPI 1055

Exigência - art. 36 da LPI

#6.1

05/01/1990

RPI 1016

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