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Official data from INPI

VALVULA DE SUCCAO E DESCARGA PARA COMPRESSORES

ConcedidaInvention Patent

Application data

Number

PI7807266

Type

Invention Patent

Filing

11/06/1978

Publication

-

Progress at the INPI

  1. Filing11/06/78
  2. Publication
  3. Examination
  4. Allowance12/22/81
  5. Grant08/31/82
  6. Terminated01/28/92

The patent was granted on 08/31/1982 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: 08/31/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HYDROAR SA IND METALLURG

Inventors

D. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

04/27/1982

RPI 601

Deferimento

#9.1

12/22/1981

RPI 583

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

18.8

07/31/1990

RPI 1026

Anuidade - prazo legal encerrado

#18.2

04/10/1990

RPI 1013

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