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Official data from INPI

PROCESSO PARA O TRATAMENTO DE PASTAS QUÍMICAS DE INDÚSTRIA DE PAPEL.

Em AnáliseInvention Patent

Application data

Number

PI8300402

Type

Invention Patent

Filing

01/27/1983

Publication

11/01/1983

Progress at the INPI

  1. Filing01/27/83
  2. Publication11/01/83
  3. Examination01/10/84
  4. Allowance09/11/90
  5. Grant10/30/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P C U K - Produits Chimiques Ugine Kuhlmann

FR

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Inventors

C. C. (pessoa física)

FR

D. L. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

82 01603 · 01/28/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Petição de recurso

#12.2

11/07/1989

RPI 994

Indeferimento

#9.2

08/01/1989

RPI 980

Conhecimento de parecer técnico

#7.1

10/08/1985

RPI 781

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

01/10/1984

RPI 690

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

Patente extinta em 27/01/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

10/30/1990

RPI 1039

100

09/11/1990

RPI 1032

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