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Official data from INPI

LIGAS DE ALUMÍNIO-LÍTIO, ALUMÍNIO-MAGNÉSIO E MAGNÉSIO-LÍTIO DE ALTA TENACIDADE

Em AnáliseInvention PatentPCT · US1990001347

Application data

Number

PI9007228

Type

Invention Patent

Filing

03/15/1990

Publication

11/26/1991

PCT

US1990001347

Progress at the INPI

  1. Filing03/15/90
  2. Publication11/26/91
  3. Examination06/29/93
  4. Allowance
  5. Grant
  6. In force

Published on 11/26/1991, 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: 11/28/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Comalco Aluminium Limited

AU

See this company's full portfolio

Inventors

D. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

328.364 · 03/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

06/29/1993

RPI 1178

Notificação de entrada na fase nacional - PCT

#1.3

11/26/1991

RPI 1095

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