(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

CONJUNTO DE VÁLVULAS DE HASTE NÃO ASCENDENTE E PROCESSO DE SUBSTITUIÇÃO DE UM SELO PERMANENTE

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905381

Type

Invention Patent

Filing

10/23/1989

Publication

04/23/1991

Progress at the INPI

  1. Filing10/23/89
  2. Publication04/23/91
  3. Examination11/26/91
  4. Allowance11/17/92
  5. Grant05/25/93
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Engineered Controls International, Inc

US

Inventors

J. P. (pessoa física)

US

T. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/295.742 · 01/11/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

04/06/1993

RPI 1166

Deferimento

#9.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

11/26/1991

RPI 1095

Publicação do pedido de patente

#3.1

04/23/1991

RPI 1064

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.