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Official data from INPI

DISPOSIÇÃO CONSTRUTIVA DE PURGADOR TERMO-DINÂMICO DE CONTROLE DE VAPOR PARA INATALAÇÕES INDUSTRIAIS.

ConcedidaInvention Patent

Application data

Number

PI8302848

Type

Invention Patent

Filing

05/30/1983

Publication

09/20/1983

Progress at the INPI

  1. Filing05/30/83
  2. Publication09/20/83
  3. Examination11/12/85
  4. Allowance11/18/86
  5. Grant06/30/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Asca - Equipamentos Industriais Ltda

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Inventors

H. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação antecipada

#3.2

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

Patente extinta em 30/05/98

07/01/2008

RPI 1956

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