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Official data from INPI

PI8904341

Em AnáliseInvention Patent

Application data

Number

PI8904341

Type

Invention Patent

Filing

08/29/1989

Publication

-

Progress at the INPI

  1. Filing08/29/89
  2. Publication05/08/90
  3. Abandoned06/23/92
  4. Allowance
  5. Grant
  6. In force

The applicant withdrew the application. The case ended without a patent.

Talk to a specialist

Latest action published by the INPI: 03/27/2018. 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

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07D 303/02; C07C 143/42; C07C 143/06.

03/27/2018

RPI 2464

10.1

11/18/1997

RPI 1407

Exigência - art. 36 da LPI

#6.1

09/24/1996

RPI 1347

Exigência - art. 36 da LPI

#6.1

09/19/1995

RPI 1294

Solicitação de exame técnico

#4.1

06/23/1992

RPI 1125

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

01/16/1990

RPI 1002

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