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Official data from INPI

PROCESSO PARA A REMOÇÃO DE PELO MENOS UM SULFETO DE SÓLIDOS E FLUÍDOS; E FORMULAÇÃO PARA A REMOÇÃO DE SULFETOS DE SÓLIDOS, LÍQUIDOS E GASES

ArquivadaInvention Patent

Application data

Number

PI8904961

Type

Invention Patent

Filing

09/29/1989

Publication

05/08/1990

Progress at the INPI

  1. Filing09/29/89
  2. Publication05/08/90
  3. Abandoned05/21/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

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

Applicants and inventors

Applicants

Union Carbide Chemicals and Plastics Company Inc.

US

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Inventors

J. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

251.362 · 09/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/06/1996

RPI 1340

Exigência - art. 36 da LPI

#6.1

10/31/1995

RPI 1300

Solicitação de exame técnico

#4.1

05/21/1991

RPI 1068

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

02/13/1990

RPI 1006

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