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Official data from INPI

PREPARAÇÃO DE MATERIAIS COMPÓSITOS

Em AnáliseInvention PatentPCT · US1988002254

Application data

Number

PI8807124

Type

Invention Patent

Filing

07/08/1988

Publication

10/17/1989

PCT

US1988002254

Progress at the INPI

  1. Filing07/08/88
  2. Publication10/17/89
  3. Examination06/25/91
  4. Allowance
  5. Grant
  6. In force

Published on 10/17/1989, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

D. C. (pessoa física)

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

M. S. (pessoa física)

Technical data

Priority claims

US

072.122 · 07/09/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/17/1989

RPI 991

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C22C 1/09.

03/27/2018

RPI 2464

Retificação

#15.3

10/11/1994

RPI 1245

14.1

06/16/1992

RPI 1124

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

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