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Official data from INPI

PROCESSO PARA A RECUPERAÇÃO DE MINERAIS POR FLOTAÇÃO EM ESPUMA

ArquivadaInvention Patent

Application data

Number

PI9002223

Type

Invention Patent

Filing

05/11/1990

Publication

11/12/1991

Progress at the INPI

  1. Filing05/11/90
  2. Publication11/12/91
  3. Examination08/10/93
  4. Allowance09/15/98
  5. Abandoned
  6. In force

The application was allowed on 09/15/1998 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: 04/11/2000. 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

D. L. (pessoa física)

R. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

Arquivamento - Artigo 38 & 2º da LPI.

04/11/2000

RPI 1527

Deferimento

#9.1

09/15/1998

RPI 1447

Exigência - art. 36 da LPI

#6.1

01/06/1998

RPI 1411

Solicitação de exame técnico

#4.1

08/10/1993

RPI 1184

Publicação do pedido de patente

#3.1

11/12/1991

RPI 1093

Pedido de patente depositado

#2.1

09/25/1990

RPI 1034

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