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Official data from INPI

MÉTODO PARA REMOÇÃO DE CONTAMINANTES QUÍMICOS DE PONTO DE EBULIÇÃO RELATIVAMENTE ELEVADO DE UM SAL INORGÂNICO

ArquivadaInvention Patent

Application data

Number

PI8904372

Type

Invention Patent

Filing

08/28/1989

Publication

04/17/1990

Progress at the INPI

  1. Filing08/28/89
  2. Publication04/17/90
  3. Examination06/02/92
  4. Allowance06/06/95
  5. Abandoned
  6. In force

The application was allowed on 06/06/1995 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: 09/03/1996. 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)

H. S. (pessoa física)

T. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

238.027 · 08/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

09/03/1996

RPI 1344

Notificação para pagamento de retribuição

#13.1

10/17/1995

RPI 1298

Deferimento

#9.1

06/06/1995

RPI 1279

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

06/02/1992

RPI 1122

Publicação do pedido de patente

#3.1

04/17/1990

RPI 1014

Pedido de patente depositado

#2.1

01/23/1990

RPI 1003

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