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Official data from INPI

APERFEIÇOAMENTO EM BOMBA CENTRÍFUGA, SISTEMA DE RECIRCULAÇÃO DE AMONÍACO PROVIDO DA BOMBA E MÉTODO DE OPERAR O SISTEMA.

ConcedidaInvention Patent

Application data

Number

PI8501190

Type

Invention Patent

Filing

03/11/1985

Publication

10/21/1986

Progress at the INPI

  1. Filing03/11/85
  2. Publication10/21/86
  3. Examination02/24/87
  4. Allowance12/27/88
  5. Grant09/26/89
  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.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Frigostrella do Brasil Indústria de Refrigeração Ltda

SP, BR

Inventors

C. V. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/02/1989

RPI 967

Deferimento

#9.1

12/27/1988

RPI 949

Exigência - art. 36 da LPI

#6.1

04/26/1988

RPI 914

Solicitação de exame técnico

#4.1

02/24/1987

RPI 853

Publicação do pedido de patente

#3.1

10/21/1986

RPI 835

Pedido de patente depositado

#2.1

06/11/1985

RPI 764

Carta-patente expirada

#21.1

Patente extinta em 11/03/2000

07/15/2008

RPI 1958

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