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Official data from INPI

VÁLVULA DE REVERSÃO PARA CONTROLE DA BAIXA PRESSÃO EM UM MOTOR DE COMANDO PNEUMÁTICO.

ConcedidaInvention Patent

Application data

Number

PI7906402

Type

Invention Patent

Filing

10/04/1979

Publication

-

Progress at the INPI

  1. Filing10/04/79
  2. Publication
  3. Examination
  4. Allowance07/27/82
  5. Grant04/26/83
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filtros Mann Ltda.

SP, BR

Inventors

G. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

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

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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