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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM COMPOSTO DA FÓRMULA GERAL R1-C(R2)=CH2; CATALISADOR COM LÍTIO E PROCESSO PARA SUA PREPARAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8108327

Type

Invention Patent

Filing

12/22/1981

Publication

10/05/1982

Progress at the INPI

  1. Filing12/22/81
  2. Publication10/05/82
  3. Examination11/13/84
  4. Allowance09/15/87
  5. Grant04/26/88
  6. Terminated11/08/94

The patent was granted on 04/26/1988 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: 04/26/1988. 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

D. P. (pessoa física)

G. G. (pessoa física)

Technical data

Priority claims

FR

8027673 · 12/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/15/1987

RPI 882

Exigência - art. 36 da LPI

#6.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

07/30/1985

RPI 771

Solicitação de exame técnico

#4.1

11/13/1984

RPI 734

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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