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Official data from INPI

COMPOSICAO VULCANIZAVEL

ConcedidaInvention Patent

Application data

Number

PI8102324

Type

Invention Patent

Filing

04/23/1980

Publication

12/08/1981

Progress at the INPI

  1. Filing04/23/80
  2. Publication12/08/81
  3. Examination06/29/82
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Terminated08/30/94

The patent was granted on 11/29/1988 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

A. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

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

Conhecimento de parecer técnico

#7.1

05/29/1984

RPI 710

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

12/08/1981

RPI 581

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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