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Official data from INPI

Processo para deslignificação de material de lignocelulose.

Em AnáliseInvention Patent

Application data

Number

PI8106122

Type

Invention Patent

Filing

09/24/1981

Publication

06/15/1982

Progress at the INPI

  1. Filing09/24/81
  2. Publication06/15/82
  3. Examination08/14/84
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Terminated05/24/88

The patent was granted on 02/04/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

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Inventors

W. D. (pessoa física)

Technical data

IPC Classification

Priority claims

CH

7183/80 · 09/25/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

08/14/1984

RPI 721

Publicação do pedido de patente

#3.1

06/15/1982

RPI 608

Pedido de patente depositado

#2.1

11/10/1981

RPI 577

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