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Official data from INPI

VALVULA PARA ADICIONAR INGREDIENTES OU EFETUAR A AMOSTRAGEM DO FLUIDO DE PASSAGEM ATRAVES DA VALVULA

ConcedidaInvention Patent

Application data

Number

PI8100262

Type

Invention Patent

Filing

01/25/1980

Publication

08/04/1981

Progress at the INPI

  1. Filing01/25/80
  2. Publication08/04/81
  3. Examination11/24/81
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Terminated08/23/94

The patent was granted on 06/26/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

C. G. (pessoa física)

K. I. (pessoa física)

S. R. (pessoa física)

S. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

Publicação do pedido de patente

#3.1

08/04/1981

RPI 563

Anuidade - prazo legal encerrado

#18.2

08/23/1994

RPI 1238

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