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Official data from INPI

PROCESSO, EM CONTRA-CORRENTE, DE MÚLTIPLOS ESTÁGIOS PARA A REMOÇÃO DE IMPUREZAS DE UM COMPOSTO AROMÁTICO BRUTO

Prazo de SigiloInvention Patent

Application data

Number

PI8903089

Type

Invention Patent

Filing

06/15/1989

Publication

01/02/1991

Progress at the INPI

  1. Filing06/15/89
  2. Publication01/02/91
  3. Examination04/27/93
  4. Allowance02/12/97
  5. Abandoned
  6. In force

The application was allowed on 02/12/1997 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

B. G. (pessoa física)

L. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/15/1989

RPI 982

Arquivamento - Art. 38 §2° da LPI

#11.4

Arquivamento - Art. 38 § 2º da LPI.

05/25/1999

RPI 1481

Notificação para pagamento de retribuição

#13.1

05/13/1997

RPI 1380

Deferimento

#9.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Publicação do pedido de patente

#3.1

01/02/1991

RPI 1048

Pedido de patente depositado

#2.1

01/16/1990

RPI 1002

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