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Official data from INPI

VÁLVULA.

Em AnáliseInvention Patent

Application data

Number

PI8009030

Type

Invention Patent

Filing

03/20/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing03/20/80
  2. Publication02/09/82
  3. Examination09/13/83
  4. Allowance12/26/84
  5. Grant06/25/85
  6. Terminated09/26/89

The patent was granted on 06/25/1985 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

Inventors

W. C. (pessoa física)

Technical data

IPC Classification

Priority claims

US

124.971 · 02/27/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/16/1985

RPI 756

Deferimento

#9.1

12/26/1984

RPI 740

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

02/09/1982

RPI 590

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