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Official data from INPI

CONJUNTO DE VÁLVULA DE PASSAGEM PARA UM RECIPIENTE DE LÍQUIDO

Arquivada/ExtintaInvention PatentPCT · US1990005407

Application data

Number

PI9007720

Type

Invention Patent

Filing

09/21/1990

Publication

07/21/1992

PCT

US1990005407

Progress at the INPI

  1. Filing09/21/90
  2. Publication07/21/92
  3. Examination08/17/93
  4. Allowance06/28/94
  5. Grant04/25/95
  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

Keystone International Holdings Corp

US

See this company's full portfolio

Inventors

A. E. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8902488 · 10/06/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/09/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

11/08/1994

RPI 1249

Deferimento

#9.1

06/28/1994

RPI 1230

Solicitação de exame técnico

#4.1

08/17/1993

RPI 1185

Notificação de entrada na fase nacional - PCT

#1.3

07/21/1992

RPI 1129

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