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Official data from INPI

COMPOSTO DE METACRILTATO DE DIENILA HOMOPOLIMEROS E COPOLIMEROS DOS COMPOSTOS COMPOSICOES CURAVEIS

ConcedidaInvention Patent
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Application data

Number

PI8103410

Type

Invention Patent

Filing

06/03/1980

Publication

02/24/1982
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Progress at the INPI

  1. Filing06/03/80
  2. Publication02/24/82
  3. Examination04/10/84
  4. Allowance11/01/88
  5. Grant07/25/89
  6. Terminated02/04/92

The patent was granted on 07/25/1989 and later terminated for failure to pay the annuities. The technology is in the public domain 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

DU PONT

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Inventors

A. G. (pessoa física)

Technical data

IPC Classification

C07C 69/54C08F 36/02C08L 47/00

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

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Exigência - art. 36 da LPI

#6.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

04/10/1984

RPI 703

Publicação do pedido de patente

#3.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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