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Official data from INPI

REGISTRO HIDRAULICO APERFEICOADO

ConcedidaInvention Patent

Application data

Number

PI8306041

Type

Invention Patent

Filing

10/27/1983

Publication

06/04/1985

Progress at the INPI

  1. Filing10/27/83
  2. Publication06/04/85
  3. Examination09/10/85
  4. Allowance12/29/87
  5. Grant08/30/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BECKER METALURGICA [BR]

Inventors

B. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

07/29/1986

RPI 823

Solicitação de exame técnico

#4.1

09/10/1985

RPI 777

Publicação do pedido de patente

#3.1

06/04/1985

RPI 763

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

Carta-patente expirada

#21.1

Patente extinta em 27/10/98

08/19/2008

RPI 1963

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