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Official data from INPI

SISTEMA DE AMOSTRAGEM PARA ANÁLISE DA UMIDADE DO AR.

Prazo de SigiloInvention Patent

Application data

Number

PI8806264

Type

Invention Patent

Filing

11/24/1988

Publication

07/24/1990

Progress at the INPI

  1. Filing11/24/88
  2. Publication07/24/90
  3. Examination07/23/91
  4. Allowance09/13/94
  5. Grant06/27/95
  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: 04/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aço Minas Gerais S/A - Açominas

MG, BR

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Inventors

M. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Carta-patente expirada

#21.1

Patente extinta em 24/11/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

01/17/1995

RPI 1259

Deferimento

#9.1

09/13/1994

RPI 1241

Exigência - art. 36 da LPI

#6.1

04/05/1994

RPI 1218

Solicitação de exame técnico

#4.1

07/23/1991

RPI 1077

Publicação do pedido de patente

#3.1

07/24/1990

RPI 1025

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