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Official data from INPI

MECANISMO DE VÁLVULA

Arquivada/ExtintaInvention PatentPCT · NO1990000031

Application data

Number

PI9007102

Type

Invention Patent

Filing

02/07/1990

Publication

11/12/1991

PCT

NO1990000031

Progress at the INPI

  1. Filing02/07/90
  2. Publication11/12/91
  3. Examination04/07/92
  4. Allowance05/31/94
  5. Grant12/27/94
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

NO

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Inventors

K. H. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

890570 · 02/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/02/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

10/04/1994

RPI 1244

Deferimento

#9.1

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

04/07/1992

RPI 1114

Notificação de entrada na fase nacional - PCT

#1.3

11/12/1991

RPI 1093

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