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

SISTEMA DE LEITURA RAPIDA E METODO PARA IMPRIMIR MATERIAL DE LEITURA PARA LEITURA MAIS RAPIDA

Arquivada/ExtintaInvention PatentPCT · US1987000294

Application data

Number

PI8707662

Type

Invention Patent

Filing

02/12/1987

Publication

08/15/1989

PCT

US1987000294

Progress at the INPI

  1. Filing02/12/87
  2. Publication08/15/89
  3. Examination10/30/90
  4. Allowance12/22/92
  5. Grant06/29/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. M. (pessoa física)

US

Inventors

M. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 12/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

12/22/1992

RPI 1151

Exigência - art. 36 da LPI

#6.1

12/03/1991

RPI 1096

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

Patent monitoring

Track this patent in real time.

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