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Official data from INPI

PRODUTO ABSORVENTE E PROCESSO PARA PREPARAÇÃO DE UMA POLPA DE CELULOSE RETENTORA ALTAMENTE ABSORVENTE

Em AnáliseInvention Patent

Application data

Number

PI8603427

Type

Invention Patent

Filing

07/21/1986

Publication

03/04/1987

Progress at the INPI

  1. Filing07/21/86
  2. Publication03/04/87
  3. Examination05/16/89
  4. Allowance05/04/99
  5. Grant10/19/99
  6. Expired12/05/12

The letters patent expired on 12/05/2012: 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Johnson & Johnson

US

See this company's full portfolio

Inventors

K. M. (pessoa física)

US

P. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

757.568 · 07/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/16/1989

RPI 969

Publicação do pedido de patente

#3.1

03/04/1987

RPI 854

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Carta-patente expirada

#21.1

Patente extinta em 19/10/2009

12/05/2012

RPI 2187

Concessão da patente

#16.1

10/19/1999

RPI 1502

Deferimento

#9.1

05/04/1999

RPI 1478

Conhecimento de parecer técnico

#7.1

04/08/1997

RPI 1375

Exigência - art. 36 da LPI

#6.1

10/19/1993

RPI 1194

Exigência - art. 36 da LPI

#6.1

11/26/1991

RPI 1095

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