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Official data from INPI

PROCESSO PARA A PREPARACAO DE CELULOSE DE ARVORES CONIFERAS PARA EMPREGO QUIMICO POSTERIOR,BEM COMO,PARA PAPEIS ESPECIAIS

Em AnáliseInvention Patent

Application data

Number

PI7806050

Type

Invention Patent

Filing

09/20/1977

Publication

-

Progress at the INPI

  1. Filing09/20/77
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Terminated07/12/88

The patent was granted on 12/27/1983 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEGUSSA

SCHWAEBISCHE ZELLSTOFF AG

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Inventors

F. J. (pessoa física)

K. H. (pessoa física)

K. H. (pessoa física)

T. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

20.4

05/07/1985

RPI 759

16.3

03/20/1984

RPI 700

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/29/1983

RPI 684

Deferimento

#9.1

07/12/1983

RPI 664

8.1

05/24/1983

RPI 657

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

6.2

01/26/1982

RPI 588

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