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Official data from INPI

PROCESSO PARA A PREPARACAO DE VINIL POLIBUTADIENO MEDIO E VINIL POLIBUTADIENO MEDIO RAMIFICADO ALEATORIAMENTE

ConcedidaInvention Patent

Application data

Number

PI8000378

Type

Invention Patent

Filing

01/31/1979

Publication

-

Progress at the INPI

  1. Filing01/31/79
  2. Publication
  3. Examination11/30/82
  4. Allowance10/15/85
  5. Grant05/27/86
  6. Terminated02/11/92

The patent was granted on 05/27/1986 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOODYEAR TIRE & RUBBER

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Inventors

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/15/1985

RPI 782

Exigência - art. 36 da LPI

#6.1

07/17/1984

RPI 717

Exigência - art. 36 da LPI

#6.1

11/22/1983

RPI 683

Solicitação de exame técnico

#4.1

11/30/1982

RPI 632

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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