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Official data from INPI

PROCESSO DE DESLIGNIFICAÇÃO DE PASTA DE PAPEL QUÍMICA CRUA.

Em AnáliseInvention Patent

Application data

Number

PI8002356

Type

Invention Patent

Filing

04/16/1980

Publication

-

Progress at the INPI

  1. Filing04/16/80
  2. Publication
  3. Examination07/13/82
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Expired06/06/95

The letters patent expired on 06/06/1995: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Groupement Européen De La Cellulose

Inventors

C. J. (pessoa física)

L. H. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 09642 · 04/17/1979

FR

80 07170 · 03/31/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

07/29/1986

RPI 823

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

14.1

06/21/1983

RPI 661

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

06/06/1995

RPI 1279

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