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Official data from INPI

PROCESSO DE PREPARAÇÃO DE ÁCIDO LEVULÍNICO

Em AnáliseInvention Patent

Application data

Number

PI8906364

Type

Invention Patent

Filing

12/08/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/08/89
  2. Publication08/21/90
  3. Examination02/02/93
  4. Allowance
  5. Grant
  6. In force

Published on 08/21/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 08/06/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

FR

Inventors

B. C. (pessoa física)

G. L. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

88/16509 · 12/09/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/06/1996

RPI 1340

Solicitação de exame técnico

#4.1

02/02/1993

RPI 1157

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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