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Official data from INPI

PERFIL DE ALUMÍNIO OU DE LIGA DE ALUMÍNIO REVESTIDO, E, PROCESSO PARA O REVESTIMENTO DIRETO DE PERFÍS DE ALUMÍNIO OU DE LIGA DE ALUMÍNIO.

Em ExigênciaInvention Patent
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Application data

Number

PI8407268

Type

Invention Patent

Filing

01/18/1984

Publication

12/24/1985
View on INPI

Progress at the INPI

  1. Filing01/18/84
  2. Publication12/24/85
  3. Examination11/24/87
  4. Allowance07/31/90
  5. Grant02/13/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Norsk Hydro A.S. 50%

NO

Inventors

R. J. (pessoa física)

US

Technical data

IPC Classification

B23K 1/20B32B 15/20

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

11/07/1989

RPI 994

Exigência - art. 36 da LPI

#6.1

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

11/24/1987

RPI 892

Notificação de entrada na fase nacional - PCT

#1.3

12/24/1985

RPI 792

Carta-patente expirada

#21.1

Patente extinta em 18/01/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

02/13/1991

RPI 1054

Notificação para pagamento de retribuição

#13.1

11/13/1990

RPI 1041

Deferimento

#9.1

07/31/1990

RPI 1026

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