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Official data from INPI

VÁLVULA

Em AnáliseInvention PatentPCT · NO1989000106

Application data

Number

PI8907717

Type

Invention Patent

Filing

10/09/1989

Publication

07/30/1991

PCT

NO1989000106

Progress at the INPI

  1. Filing10/09/89
  2. Publication07/30/91
  3. Examination03/03/92
  4. Allowance04/13/93
  5. Grant09/28/93
  6. Terminated07/16/96

The patent was granted on 09/28/1993 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: 07/16/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

NO

M. C. (pessoa física)

US

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Inventors

B. G. (pessoa física)

NO

P. F. (pessoa física)

NO

P. D. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

NO

884588 · 10/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/16/1996

RPI 1337

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/03/1993

RPI 1183

Deferimento

#9.1

04/13/1993

RPI 1167

Solicitação de exame técnico

#4.1

03/03/1992

RPI 1109

Notificação de entrada na fase nacional - PCT

#1.3

07/30/1991

RPI 1078

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