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

ISOLADOR ELÉTRICO, APRESENTANDO UMA INSENSIBILIDADE MELHORADA À POLUIÇÃO

ConcedidaInvention Patent

Application data

Number

PI8401989

Type

Invention Patent

Filing

04/27/1984

Publication

12/04/1984

Progress at the INPI

  1. Filing04/27/84
  2. Publication12/04/84
  3. Examination04/29/86
  4. Allowance05/23/89
  5. Grant11/28/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CERAVER, sociedade anônima francesa

FR

Inventors

A. B. (pessoa física)

FR

L. P. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

83 07 100 · 04/29/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/19/1989

RPI 987

Deferimento

#9.1

05/23/1989

RPI 970

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

04/29/1986

RPI 810

Publicação do pedido de patente

#3.1

12/04/1984

RPI 737

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Carta-patente expirada

#21.1

Patente extinta em 27/04/99

07/08/2008

RPI 1957

Patent monitoring

Track this patent in real time.

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