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Official data from INPI

DISPOSITIVO DE VÁLVULA DE CONTROLE

PublicadaInvention Patent

Application data

Number

PI8705666

Type

Invention Patent

Filing

10/22/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing10/22/87
  2. Publication06/14/88
  3. Examination10/16/90
  4. Allowance03/17/92
  5. Grant11/24/92
  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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Standard Inc

US

See this company's full portfolio

Inventors

C. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

930.480 · 11/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

01/05/1988

RPI 898

Carta-patente expirada

#21.1

Patente extinta em 22/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

08/11/1992

RPI 1132

Deferimento

#9.1

03/17/1992

RPI 1111

Exigência - art. 36 da LPI

#6.1

08/20/1991

RPI 1081

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

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