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Official data from INPI

COMPOSICAO DE BORRACHA HALOBUTILICA ESTABILIZADA

Em AnáliseInvention Patent

Application data

Number

PI7608705

Type

Invention Patent

Filing

12/30/1975

Publication

-

Progress at the INPI

  1. Filing12/30/75
  2. Publication
  3. Examination
  4. Allowance06/14/83
  5. Grant09/27/83
  6. Terminated11/24/87

The patent was granted on 09/27/1983 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EXXON RESEARCH ENGINEERING CO

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Inventors

H. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/23/1983

RPI 670

100

06/14/1983

RPI 660

120

09/21/1982

RPI 622

120

12/29/1981

RPI 584

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