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

PROCESSO PARA FABRICAR E REFORÇAR UMA UNIDADE CATALÍTICA

PublicadaInvention Patent

Application data

Number

PI8805954

Type

Invention Patent

Filing

11/14/1988

Publication

08/08/1989

Progress at the INPI

  1. Filing11/14/88
  2. Publication08/08/89
  3. Examination09/11/90
  4. Allowance09/12/95
  5. Grant04/30/96
  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: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kemira Oy

FI

See this company's full portfolio

Inventors

R. L. (pessoa física)

FI

V. L. (pessoa física)

FI

Technical data

Priority claims

FI

875045 · 11/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/08/1989

RPI 981

Pedido de patente depositado

#2.1

03/28/1989

RPI 962

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 35/04; B01D 53/36; F01N 3/10.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 14/11/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

Patent monitoring

Track this patent in real time.

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