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Official data from INPI

CONJUNTO DE VÁLVULA TIPO-DISCO

ConcedidaInvention Patent

Application data

Number

PI8203274

Type

Invention Patent

Filing

06/03/1982

Publication

12/20/1983

Progress at the INPI

  1. Filing06/03/82
  2. Publication12/20/83
  3. Examination03/04/86
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Terminated10/16/90

The patent was granted on 07/26/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Keystone International, Inc.

US

See this company's full portfolio

Inventors

E. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

345.660 · 02/04/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

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

10/29/1986

RPI 836

Solicitação de exame técnico

#4.1

03/04/1986

RPI 802

Publicação do pedido de patente

#3.1

12/20/1983

RPI 687

Pedido de patente depositado

#2.1

07/27/1982

RPI 614

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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