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Official data from INPI

DISPOSITIVO PROTETOR CONTRA CORRENTES DE FUGA EM APARELHOS ELÉTRICOS DE AQUECIMENTO DE ÁGUA DE CARCAÇA METÁLICA

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9003407

Type

Invention Patent

Filing

07/10/1990

Publication

12/18/1990
View on INPI

Progress at the INPI

  1. Filing07/10/90
  2. Publication12/18/90
  3. Examination02/19/91
  4. Allowance07/04/95
  5. Grant02/04/97
  6. Expired05/25/10

The letters patent expired on 05/25/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. L. (pessoa física)

SP, BR

Inventors

C. L. (pessoa física)

BR

Technical data

IPC Classification

H05B 1/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

02/04/1997

RPI 1366

Notificação para pagamento de retribuição

#13.1

09/17/1996

RPI 1346

110

07/02/1996

RPI 1335

Recurso

#12.1

10/24/1995

RPI 1299

Deferimento

#9.1

07/04/1995

RPI 1283

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

Pedido de patente depositado

#2.1

12/18/1990

RPI 1046

Publicação antecipada

#3.2

12/18/1990

RPI 1046

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