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Official data from INPI

VÁLVULA REDUTORA DE PRESSÃO

ConcedidaInvention Patent

Application data

Number

PI8506254

Type

Invention Patent

Filing

12/13/1985

Publication

08/26/1986

Progress at the INPI

  1. Filing12/13/85
  2. Publication08/26/86
  3. Examination12/02/86
  4. Allowance02/28/89
  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

TLV Company, Limited

JP

Inventors

T. Y. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

59-190706 · 12/14/1984

JP

60-139846 · 09/11/1985

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

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

12/02/1986

RPI 841

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 13/12/2000

07/15/2008

RPI 1958

22.2

Referência: Petição INPI/RJ 006810 de 03.04.1997

04/27/2004

RPI 1738

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