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Official data from INPI

AGENTE DEPRESSOR DE MINERAIS DE SULFETO DE FERRO, PROCESSO PARA PREPARAR UM AGENTE DEPRESSOR DE MINERAIS DE SULFETO DE FERRO, PROCESSO DE SEPARAÇÃO DE FLOTAÇÃO POR ESPUMA DE MINERAIS SULFETOS POLIMETÁLICOS E PROCESSO DE SEPARAÇÃO MINERAL DE MINERAIS SULFETOS POLIMETÁLICOS

ArquivadaInvention PatentPCT · US1989001828

Application data

Number

PI8906938

Type

Invention Patent

Filing

05/01/1989

Publication

12/11/1990

PCT

US1989001828

Progress at the INPI

  1. Filing05/01/89
  2. Publication12/11/90
  3. Abandoned03/17/92
  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: 12/15/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Falconbridge Limited

US

Indopco, Inc.

US

National Starch And Chemical Corp

US

T. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. J. (pessoa física)

S. B. (pessoa física)

T. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

188,949 · 05/02/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

Ref. 1434 de 16/06/98, conforme o disposto no art. 36 § 1º.

12/15/1998

RPI 1458

Exigência - art. 36 da LPI

#6.1

06/16/1998

RPI 1434

14.1

02/21/1995

RPI 1264

14.4

12/07/1993

RPI 1201

Solicitação de exame técnico

#4.1

03/17/1992

RPI 1111

Solicitação de exame não realizada

#4.2

09/10/1991

RPI 1084

Notificação de entrada na fase nacional - PCT

#1.3

12/11/1990

RPI 1045

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