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Official data from INPI

DISPOSIÇÕES INTRODUZIDAS EM AQUECEDOR DE ÁGUA

Arquivada/ExtintaUtility Model

Application data

Number

MU7001818

Type

Utility Model

Filing

09/05/1990

Publication

04/02/1991

Progress at the INPI

  1. Filing09/05/90
  2. Publication04/02/91
  3. Examination05/28/91
  4. Allowance03/01/94
  5. Grant10/25/94
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/01/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. R. (pessoa física)

PR, BR

Inventors

F. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/09/2000

07/01/2008

RPI 1956

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

06/14/1994

RPI 1228

Deferimento

#9.1

03/01/1994

RPI 1213

Solicitação de exame técnico

#4.1

05/28/1991

RPI 1069

Publicação antecipada

#3.2

04/02/1991

RPI 1061

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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