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Official data from INPI

PROCESSO E APARELHO PARA DESGASEIFICAR ÁGUA DE ALIMENTAÇÃO PARA GERADORES DE VAPOR

ConcedidaInvention Patent
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Application data

Number

PI8501443

Type

Invention Patent

Filing

03/29/1985

Publication

11/26/1985
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Progress at the INPI

  1. Filing03/29/85
  2. Publication11/26/85
  3. Examination01/19/88
  4. Allowance02/28/89
  5. Grant11/28/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ansaldo S.p.A.

IT

Inventors

G. R. (pessoa física)

IT

Technical data

IPC Classification

F22D 1/00

Priority claims

IT

12477 A/84 · 03/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Solicitação de exame técnico

#4.1

01/19/1988

RPI 900

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Carta-patente expirada

#21.1

Patente extinta em 29/03/2000

07/15/2008

RPI 1958

Concessão anulada

#16.2

01/16/1990

RPI 1002

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