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

CABEÇA DE GRAVAÇÃO MAGNÉTICA E PROCESSO PARA FABRICÁ-LA

PublicadaInvention Patent

Application data

Number

PI8803756

Type

Invention Patent

Filing

07/28/1988

Publication

05/23/1989

Progress at the INPI

  1. Filing07/28/88
  2. Publication05/23/89
  3. Examination05/01/90
  4. Allowance11/07/95
  5. Grant07/30/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

Q. C. (pessoa física)

US

See this company's full portfolio

Inventors

M. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

079.117 · 07/29/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/23/1989

RPI 970

Pedido de patente depositado

#2.1

01/03/1989

RPI 950

Carta-patente expirada

#21.1

Patente extinta em 28/07/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

12/23/1997

RPI 1409

Concessão da patente

#16.1

07/30/1996

RPI 1339

Notificação para pagamento de retribuição

#13.1

03/19/1996

RPI 1320

Deferimento

#9.1

11/07/1995

RPI 1301

Solicitação de exame técnico

#4.1

05/01/1990

RPI 1016

Related

From the same holder

Same category

Patent monitoring

Track this patent in real time.

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