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Official data from INPI

VALVULA DE SEGURANCA ESPECIALMENTE UMA VALVULA DE CURSO

Em AnáliseInvention Patent

Application data

Number

PI7807323

Type

Invention Patent

Filing

11/08/1977

Publication

-

Progress at the INPI

  1. Filing11/08/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant03/29/83
  6. Terminated05/17/88

The patent was granted on 03/29/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WOMA MAASBERG CO GMBH W

Inventors

G. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

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