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Official data from INPI

APARELHO PARA PREPARAÇÃO MÚLTIPLA DE AMOSTRAS PARA ANÁLISE METALOGRÁFICA

Prazo de SigiloInvention Patent

Application data

Number

PI8805877

Type

Invention Patent

Filing

11/10/1988

Publication

06/19/1990

Progress at the INPI

  1. Filing11/10/88
  2. Publication06/19/90
  3. Examination05/26/92
  4. Allowance09/12/95
  5. Grant04/30/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mendes Júnior Siderurgia S.A

MG, BR

Siderúrgica Mendes Júnior S.A

MG, BR

See this company's full portfolio

Inventors

P. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

03/28/1989

RPI 962

Carta-patente expirada

#21.1

Patente extinta em 10/11/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

14.4

12/20/1994

RPI 1255

Retificação

#15.6

11/29/1994

RPI 1252

Alteração de numeração

#15.1

07/26/1994

RPI 1234

Solicitação de exame técnico

#4.1

05/26/1992

RPI 1121

Publicação do pedido de patente

#3.1

06/19/1990

RPI 1023

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