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Official data from INPI

PROCESSO PARA A DESLIGNIFICAÇÃO DE MATÉRIAS CELULÓSICAS

Em AnáliseInvention Patent

Application data

Number

PI8603672

Type

Invention Patent

Filing

08/04/1986

Publication

03/10/1987

Progress at the INPI

  1. Filing08/04/86
  2. Publication03/10/87
  3. Examination02/14/89
  4. Allowance05/19/92
  5. Grant01/26/93
  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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Interox

BE

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Inventors

J. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

762726 · 08/05/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/14/1989

RPI 956

Publicação do pedido de patente

#3.1

03/10/1987

RPI 855

Pedido de patente depositado

#2.1

02/24/1987

RPI 853

Carta-patente expirada

#21.1

Patente extinta em 04/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

05/19/1992

RPI 1120

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

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