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Official data from INPI

REDUTOR DE PRESSÃO.

DeferidaUtility Model

Application data

Number

MU6600949

Type

Utility Model

Filing

06/23/1986

Publication

02/17/1988

Progress at the INPI

  1. Filing06/23/86
  2. Publication02/17/88
  3. Examination06/28/88
  4. Allowance08/29/89
  5. Grant04/24/90
  6. Expired09/17/96

The letters patent expired on 09/17/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lorenzetti S/A Indústrias Brasileiras Eletrometalúrgicas

SP, BR

See this company's full portfolio

Inventors

C. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

Solicitação de exame técnico

#4.1

06/28/1988

RPI 923

Publicação do pedido de patente

#3.1

02/17/1988

RPI 904

Pedido de patente depositado

#2.1

01/27/1987

RPI 849

Carta-patente expirada

#21.1

09/17/1996

RPI 1346

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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