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Official data from INPI

BOMBA DE ÓLEO

PublicadaInvention Patent

Application data

Number

PI8703424

Type

Invention Patent

Filing

07/06/1987

Publication

03/22/1988

Progress at the INPI

  1. Filing07/06/87
  2. Publication03/22/88
  3. Examination04/10/90
  4. Allowance01/02/91
  5. Grant07/30/91
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 03/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Concentric Pumps Limited

GB

See this company's full portfolio

Inventors

R. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8616488 · 07/07/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/22/1988

RPI 909

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 06/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

Solicitação de exame técnico

#4.1

04/10/1990

RPI 1013

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