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Official data from INPI

PROCESSO DE PREPARAÇÃO DE POLÍMEROS OU COPOLÍMEROS BIMODAIS OU MULTIMODAIS DE DIENOS CONJUGADOS SEJA ENTRE SI OU COM UM COMPOSTO VINIL AROMÁTICO

Em AnáliseInvention Patent

Application data

Number

PI8102168

Type

Invention Patent

Filing

04/09/1981

Publication

10/13/1981

Progress at the INPI

  1. Filing04/09/81
  2. Publication10/13/81
  3. Examination10/04/83
  4. Allowance03/05/85
  5. Grant10/29/85
  6. Terminated06/20/95

The patent was granted on 10/29/1985 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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Michelin & Cie (Compagnie Générale des Etablissements Michelin).

FR

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Inventors

F. C. (pessoa física)

Technical data

Priority claims

FR

80-08 109 · 04/09/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/22/1988

RPI 944

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

06/25/1985

RPI 766

Deferimento

#9.1

03/05/1985

RPI 750

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Publicação do pedido de patente

#3.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

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