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

PROCESSO PARA PRODUÇÃO DE PARTÍCULAS SÓLIDAS DE TAMANHO MÉDIO DE PARTÍCULA REDUZIDO

PublicadaInvention Patent

Application data

Number

PI8803484

Type

Invention Patent

Filing

07/11/1988

Publication

01/31/1989

Progress at the INPI

  1. Filing07/11/88
  2. Publication01/31/89
  3. Examination08/06/91
  4. Allowance05/11/93
  5. Grant09/28/93
  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: 01/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

H. A. (pessoa física)

GB

S. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8716213 · 07/09/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/31/1989

RPI 954

Pedido de patente depositado

#2.1

12/13/1988

RPI 947

Carta-patente expirada

#21.1

Patente extinta em 11/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/28/1993

RPI 1191

Deferimento

#9.1

05/11/1993

RPI 1171

Exigência - art. 36 da LPI

#6.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

08/06/1991

RPI 1079

Patent monitoring

Track this patent in real time.

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