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Official data from INPI

COMPOSIÇÃO DE RESINA SINTÉTICA TERMOPLÁSTICA, ARTIGO DE ESPUMA E PROCESSO APERFEIÇOADO PARA SUS PREPARAÇÃO.

ConcedidaInvention Patent
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Application data

Number

PI8005513

Type

Invention Patent

Filing

08/29/1980

Publication

04/27/1982
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Progress at the INPI

  1. Filing08/29/80
  2. Publication04/27/82
  3. Examination02/28/84
  4. Allowance11/08/88
  5. Grant07/25/89
  6. Expired09/26/95

The letters patent expired on 09/26/1995: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Asahi-Dow Limited.

JP

Inventors

H. W. (pessoa física)

N. M. (pessoa física)

T. H. (pessoa física)

Technical data

IPC Classification

C08J 9/02C08K 5/10C08L 23/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

02/28/1989

RPI 958

Deferimento

#9.1

11/08/1988

RPI 942

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

02/28/1984

RPI 697

Publicação do pedido de patente

#3.1

04/27/1982

RPI 601

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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