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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE POLÍMEROS DE MONÓXIDO DE CARBONO LINEARES, ALTERNANTES, COM UM OU MAIS COMPOSTOS ALFA OLEFINICAMENTE NÃO-SATURADOS.

PublicadaInvention Patent
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Application data

Number

PI8706365

Type

Invention Patent

Filing

11/25/1987

Publication

07/26/1988
View on INPI

Progress at the INPI

  1. Filing11/25/87
  2. Publication07/26/88
  3. Examination10/23/90
  4. Allowance10/26/93
  5. Grant05/31/94
  6. Terminated10/24/95

The patent was granted on 05/31/1994 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V.

NL

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Inventors

E. D. (pessoa física)

NL

Technical data

IPC Classification

C08G 67/02

Priority claims

NL

8603015 · 11/27/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/26/1988

RPI 927

Pedido de patente depositado

#2.1

03/08/1988

RPI 907

Anuidade - prazo legal encerrado

#18.2

10/24/1995

RPI 1299

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

06/02/1992

RPI 1122

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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