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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CATECOL E/OU UM COMPOSTO QUE COMPREENDE UM ANEL DE 1,2-DIIDRÓXI-CICLO-HEXA-E,5-DIENO

PublicadaInvention Patent

Application data

Number

PI8703460

Type

Invention Patent

Filing

07/07/1987

Publication

03/22/1988

Progress at the INPI

Under appeal
  1. Filing07/07/87
  2. Publication03/22/88
  3. Examination09/11/90
  4. Refused01/16/96
  5. Grant
  6. In force

The application was refused by the INPI on 01/16/1996. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

J. S. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8616612 · 07/08/1986

GB

8616613 · 07/08/1986

GB

8616614 · 07/08/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/22/1988

RPI 909

Pedido de patente depositado

#2.1

11/17/1987

RPI 891

Indeferimento

#9.2

01/16/1996

RPI 1311

Conhecimento de parecer técnico

#7.1

02/07/1995

RPI 1262

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

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