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Official data from INPI

PERFIL ESTRUTURAL.

Em AnáliseUtility Model

Application data

Number

MU6400608

Type

Utility Model

Filing

04/27/1984

Publication

12/03/1985

Progress at the INPI

  1. Filing04/27/84
  2. Publication12/03/85
  3. Examination08/05/86
  4. Allowance05/17/94
  5. Grant11/29/94
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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

Alcoa Alumínio S/A

MG, BR

Companhia Química Industrial de Laminados

RJ, BR

See this company's full portfolio

Inventors

A. N. (pessoa física)

BR

N. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

102

04/18/1989

RPI 965

Pedido de recurso

#12.3

01/10/1989

RPI 951

11.3

09/27/1988

RPI 936

Republicação - classificação IPC

#15.11

08/18/1987

RPI 878

Exigência - art. 36 da LPI

#6.1

07/14/1987

RPI 873

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

12/03/1985

RPI 789

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/17/1994

RPI 1224

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