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Official data from INPI

VÁLVULA DE CORREDIÇA E PROCESSO DE CONTROLE DO FLUXO.

ConcedidaInvention Patent

Application data

Number

PI8302427

Type

Invention Patent

Filing

05/10/1983

Publication

01/10/1984

Progress at the INPI

  1. Filing05/10/83
  2. Publication01/10/84
  3. Examination04/29/86
  4. Allowance07/14/87
  5. Grant01/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 01/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Flo-Con Systems, Inc

US

See this company's full portfolio

Inventors

S. P. (pessoa física)

Technical data

IPC Classification

Priority claims

US

381.063 · 05/24/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/26/1988

RPI 901

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Solicitação de exame técnico

#4.1

04/29/1986

RPI 810

Publicação do pedido de patente

#3.1

01/10/1984

RPI 690

Pedido de patente depositado

#2.1

06/28/1983

RPI 662

Carta-patente expirada

#21.1

Patente extinta em 10/05/98

07/01/2008

RPI 1956

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