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

VÁLVULA DE ESGOTAMENTO

Prazo de SigiloUtility Model

Application data

Number

MU6802738

Type

Utility Model

Filing

12/14/1988

Publication

08/07/1990

Progress at the INPI

  1. Filing12/14/88
  2. Publication08/07/90
  3. Examination12/26/90
  4. Allowance08/03/93
  5. Grant02/16/94
  6. Terminated07/09/96

The patent was granted on 02/16/1994 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: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Indústria de Máquinas Enko Ltda

RS, BR

Inventors

J. E. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/23/1989

RPI 970

Anuidade - prazo legal encerrado

#18.2

07/09/1996

RPI 1336

Concessão da patente

#16.1

02/16/1994

RPI 1211

Deferimento

#9.1

08/03/1993

RPI 1183

Exigência - art. 36 da LPI

#6.1

01/05/1993

RPI 1153

Solicitação de exame técnico

#4.1

12/26/1990

RPI 1047

Publicação do pedido de patente

#3.1

08/07/1990

RPI 1027

Patent monitoring

Track this patent in real time.

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