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Official data from INPI

PROCESSO PARA PRODUZIR UM POLIMERO SEMELHANTE A BORRACHA

Em AnáliseInvention Patent

Application data

Number

PI7901965

Type

Invention Patent

Filing

03/31/1978

Publication

-

Progress at the INPI

  1. Filing03/31/78
  2. Publication
  3. Examination11/10/81
  4. Allowance04/19/83
  5. Grant10/25/83
  6. Terminated05/17/88

The patent was granted on 10/25/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EXXON RESEARCH ENGINEERING CO

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Inventors

B. D. (pessoa física)

M. S. (pessoa física)

S. R. (pessoa física)

T. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

6.2

08/10/1982

RPI 616

Pedido de certificado de adição de invenção

#5.1

04/27/1982

RPI 601

Solicitação de exame técnico

#4.1

11/10/1981

RPI 577

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