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

LIGA DE IMÃ PERMANENTE

Em ExigênciaInvention Patent

Application data

Number

PI8400917

Type

Invention Patent

Filing

02/28/1984

Publication

06/11/1985

Progress at the INPI

  1. Filing02/28/84
  2. Publication06/11/85
  3. Examination10/29/85
  4. Allowance04/06/93
  5. Grant09/28/93
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

544,728 · 10/26/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Publicação do pedido de patente

#3.1

06/11/1985

RPI 764

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Carta-patente expirada

#21.1

Patente extinta em 28/02/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/24/1993

RPI 1186

Deferimento

#9.1

04/06/1993

RPI 1166

Exigência - art. 36 da LPI

#6.1

09/03/1991

RPI 1083

Patent monitoring

Track this patent in real time.

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