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Official data from INPI

PROCESSO DE PRESERVAÇÃO DE MADEIRAS POR ABSORÇÃO NATURAL

Prazo de SigiloInvention Patent

Application data

Number

PI8805138

Type

Invention Patent

Filing

09/30/1988

Publication

05/22/1990

Progress at the INPI

  1. Filing09/30/88
  2. Publication05/22/90
  3. Examination06/23/92
  4. Allowance12/28/99
  5. Grant03/08/00
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto de Pesquisas Tecnológicas de São Paulo S/A - IPT

SP, BR

See this company's full portfolio

Inventors

G. J. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 08/03/2010

12/18/2012

RPI 2189

Concessão da patente

#16.1

03/08/2000

RPI 1522

Deferimento

#9.1

12/28/1999

RPI 1512

Exigência - art. 36 da LPI

#6.1

10/13/1999

RPI 1501

Exigência - art. 36 da LPI

#6.1

05/11/1999

RPI 1479

Exigência - art. 36 da LPI

#6.1

07/25/1995

RPI 1286

Solicitação de exame técnico

#4.1

06/23/1992

RPI 1125

Publicação do pedido de patente

#3.1

05/22/1990

RPI 1019

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