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Official data from INPI

PROCESSO DE DIGESTAO E ALVEJAMENTO DE CELULOSE

Em AnáliseInvention Patent

Application data

Number

PI7708509

Type

Invention Patent

Filing

12/22/1976

Publication

-

Progress at the INPI

  1. Filing12/22/76
  2. Publication
  3. Examination
  4. Allowance07/20/82
  5. Grant02/22/83
  6. Terminated12/15/87

The patent was granted on 02/22/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

F. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Pedido de licença compulsória

#20.1

04/10/1984

RPI 703

20.4

08/16/1983

RPI 669

22.9

04/26/1983

RPI 653

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

12/07/1982

RPI 633

Deferimento

#9.1

07/20/1982

RPI 613

Exigência - art. 36 da LPI

#6.1

12/08/1981

RPI 581

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