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Official data from INPI

COMPONENTE CATALÍTICO SÓLIDO E SITEMA CATALÍTICO PARA POLIMERIZAÇÃO DE OLEFINA E PROCESSO PARA PRODUZIR UMA POLIOLEFINA.

Concessão AnuladaInvention Patent
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Application data

Number

PI8002449

Type

Invention Patent

Filing

04/22/1980

Publication

12/09/1980
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Progress at the INPI

  1. Filing04/22/80
  2. Publication12/09/80
  3. Examination01/18/83
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sumitomo Chemical Company, Limited.

JP

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Inventors

K. K. (pessoa física)

Y. Y. (pessoa física)

Technical data

IPC Classification

C08F 10/00C08F 4/62

Priority claims

JP

51641/79 · 04/25/1979

JP

9200/80 · 01/28/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

01/18/1983

RPI 639

Publicação do pedido de patente

#3.1

12/09/1980

RPI 529

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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