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Official data from INPI

Elemento e processo de controle de fluxo de fluido.

ConcedidaInvention Patent

Application data

Number

PI8108912

Type

Invention Patent

Filing

12/08/1981

Publication

10/26/1982

Progress at the INPI

  1. Filing12/08/81
  2. Publication10/26/82
  3. Examination07/17/84
  4. Allowance05/12/87
  5. Grant10/27/87
  6. Terminated11/08/94

The patent was granted on 10/27/1987 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

M. W. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

81/01632 · 12/08/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Deferimento

#9.1

05/12/1987

RPI 864

Conhecimento de parecer técnico

#7.1

04/01/1986

RPI 806

Exigência - art. 36 da LPI

#6.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Solicitação de exame técnico

#4.1

07/17/1984

RPI 717

Notificação de entrada na fase nacional - PCT

#1.3

10/26/1982

RPI 627

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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