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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE POLÍMEROS DE COMPOSTOS AROMÁTICOS DE MONOVINILIDENO REFORÇADOS COM BORRACHA

ConcedidaInvention Patent

Application data

Number

PI8303058

Type

Invention Patent

Filing

06/06/1983

Publication

01/31/1984

Progress at the INPI

  1. Filing06/06/83
  2. Publication01/31/84
  3. Examination06/17/86
  4. Allowance01/10/89
  5. Grant08/29/89
  6. Terminated08/29/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

J. D. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

NL

82.02281 · 06/04/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

07/19/1988

RPI 926

6.2

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

06/17/1986

RPI 817

3.4

03/20/1984

RPI 700

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

07/19/1983

RPI 665

Anuidade - prazo legal encerrado

#18.2

08/29/1995

RPI 1291

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