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Official data from INPI

ESTRUTURA DE VALVULA COMBINADA DE REDUCAO DE PRESSAO E DE CONTROLE DE FLUSCO

Em AnáliseInvention Patent

Application data

Number

PI7903559

Type

Invention Patent

Filing

06/05/1979

Publication

-

Progress at the INPI

  1. Filing06/05/79
  2. Publication
  3. Examination
  4. Allowance07/27/82
  5. Grant04/26/83
  6. Terminated06/24/86

The patent was granted on 04/26/1983 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MAC VALVES INC

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Inventors

N. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/24/1986

RPI 818

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

22.9

06/28/1983

RPI 662

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

12/14/1982

RPI 634

Deferimento

#9.1

07/27/1982

RPI 614

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