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Official data from INPI

COMPOSICOES PARA UTILIZACAO NA DE CELULOSE E PROCESSO PARA A FABRICACAO DE CELULOSE

Em AnáliseInvention Patent

Application data

Number

PI7903896

Type

Invention Patent

Filing

06/21/1978

Publication

-

Progress at the INPI

  1. Filing06/21/78
  2. Publication
  3. Examination01/26/82
  4. Allowance01/03/84
  5. Grant06/26/84
  6. Terminated05/17/88

The patent was granted on 06/26/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

B. D. (pessoa física)

H. V. (pessoa física)

N. K. (pessoa física)

S. P. (pessoa física)

W. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Exigência - art. 36 da LPI

#6.1

01/11/1983

RPI 638

Solicitação de exame técnico

#4.1

01/26/1982

RPI 588

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