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Official data from INPI

VÁLVULA REGULADORA DE FLUÍDO.

Em AnáliseInvention Patent

Application data

Number

PI8505165

Type

Invention Patent

Filing

02/07/1985

Publication

01/21/1986

Progress at the INPI

  1. Filing02/07/85
  2. Publication01/21/86
  3. Examination08/19/86
  4. Allowance07/18/89
  5. Grant09/25/90
  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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

V. I. (pessoa física)

US

Inventors

C. B. (pessoa física)

US

F. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

579.133 · 02/10/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Recurso

#12.1

11/07/1989

RPI 994

Deferimento

#9.1

07/18/1989

RPI 978

Exigência - art. 36 da LPI

#6.1

11/29/1988

RPI 945

Pedido de certificado de adição de invenção

#5.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

Notificação de entrada na fase nacional - PCT

#1.3

01/21/1986

RPI 796

Carta-patente expirada

#21.1

Patente extinta em 07/02/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

08/07/1990

RPI 1027

110

06/05/1990

RPI 1021

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