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Official data from INPI

PROCESSO DE SEPARAÇÃO DE UMA MISTURA DE LIGAS METÁLICAS.

PublicadaInvention Patent

Application data

Number

PI8804699

Type

Invention Patent

Filing

09/12/1988

Publication

04/18/1989

Progress at the INPI

Under appeal
  1. Filing09/12/88
  2. Publication04/18/89
  3. Examination07/02/91
  4. Refused12/06/94
  5. Grant
  6. In force

The application was refused by the INPI on 12/06/1994. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

R. B. (pessoa física)

W. D. (pessoa física)

Technical data

IPC Classification

Priority claims

CA

546685 · 09/11/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Indeferimento

#9.2

12/06/1994

RPI 1253

Conhecimento de parecer técnico

#7.1

03/01/1994

RPI 1213

Solicitação de exame técnico

#4.1

07/02/1991

RPI 1074

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