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Official data from INPI

PROCESSO CONTÍNUO APERFEIÇOADO PARA A FABRICAÇÃO DE HOMPOLÍMEROS OU DE COPOLÍMEROS DO ETILENO

ConcedidaInvention Patent

Application data

Number

PI8307071

Type

Invention Patent

Filing

12/22/1983

Publication

07/31/1984

Progress at the INPI

  1. Filing12/22/83
  2. Publication07/31/84
  3. Examination09/02/86
  4. Allowance01/10/89
  5. Grant09/26/89
  6. Terminated10/02/90

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Societe Chimique Des Charbonnages S.A.

FR

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Inventors

J. M. (pessoa física)

FR

K. B. (pessoa física)

FR

S. B. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

82/21737 · 12/24/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

07/19/1988

RPI 926

6.2

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

09/02/1986

RPI 828

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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