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Official data from INPI

PROCESSO APERFEIÇOADO DE REGENERAÇÃO DE ÁLCALI.

ConcedidaInvention Patent

Application data

Number

PI8306659

Type

Invention Patent

Filing

03/24/1983

Publication

02/07/1984

Progress at the INPI

  1. Filing03/24/83
  2. Publication02/07/84
  3. Examination06/05/84
  4. Allowance05/17/88
  5. Grant01/10/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Australian Paper Manufacturers Limited

AU

Inventors

C. [. (pessoa física)

K. [. (pessoa física)

Technical data

Priority claims

AU

PCT/83/00035 · 03/24/1983

AU

PF 3311/82 · 03/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

09/03/1985

RPI 776

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Notificação de entrada na fase nacional - PCT

#1.3

02/07/1984

RPI 694

Carta-patente expirada

#21.1

Patente extinta em 24/03/98

07/01/2008

RPI 1956

Cessão de direito de exploração

#22.1

11/21/1995

RPI 1303

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