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Official data from INPI

REGISTRO PARA GÁS.

ConcedidaUtility Model

Application data

Number

MU6402126

Type

Utility Model

Filing

12/21/1984

Publication

07/08/1986

Progress at the INPI

  1. Filing12/21/84
  2. Publication07/08/86
  3. Examination02/10/87
  4. Allowance05/24/88
  5. Grant04/25/89
  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.

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Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aliança Metalúrgica S/A

SP, BR

See this company's full portfolio

Inventors

J. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

09/20/1988

RPI 935

Deferimento

#9.1

05/24/1988

RPI 918

Exigência - art. 36 da LPI

#6.1

12/22/1987

RPI 896

Solicitação de exame técnico

#4.1

02/10/1987

RPI 851

Publicação do pedido de patente

#3.1

07/08/1986

RPI 820

Pedido de patente depositado

#2.1

04/02/1985

RPI 754

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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