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Official data from INPI

POLPAÇÃO SEMI-QUÍMICA CONTRACORRENTE E SEM ENXOFRE.

Em AnáliseInvention Patent

Application data

Number

PI7907858

Type

Invention Patent

Filing

12/03/1979

Publication

-

Progress at the INPI

  1. Filing12/03/79
  2. Publication
  3. Examination05/25/82
  4. Allowance12/13/83
  5. Grant04/24/84
  6. Terminated06/14/88

The patent was granted on 04/24/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Australian Paper Manufacturers Limited

AU

Inventors

A. W. (pessoa física)

N. V. (pessoa física)

N. P. (pessoa física)

Technical data

IPC Classification

Priority claims

AU

PD 6976/78 · 12/01/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

04/10/1984

RPI 703

Deferimento

#9.1

12/13/1983

RPI 686

8.1

05/24/1983

RPI 657

Solicitação de exame técnico

#4.1

05/25/1982

RPI 605

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