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

PROCESSO PARA A PREPARAÇÃO DE UM METACRILATO DE ALQUILA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001676

Type

Invention Patent

Filing

04/09/1990

Publication

05/14/1991

Progress at the INPI

  1. Filing04/09/90
  2. Publication05/14/91
  3. Examination06/22/93
  4. Allowance12/10/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries PLC

GB

Ineos Acrylics UK LTD

GB

Lucite International UK Limited

GB

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

J. C. (pessoa física)

NL

J. G. (pessoa física)

NL

M. D. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8908079.0 · 04/11/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/04/2010

05/21/2013

RPI 2211

Alteração de nome deferida

#25.4

Alterado de: Ineos Acrylics UK Limited

09/06/2005

RPI 1809

Alteração de sede deferida

#25.7

Alterada a sede do titular conforme solicitado na Petição nº 002634/RJ de 16/01/2003.

09/06/2005

RPI 1809

Transferência deferida

#25.1

Transferido de: Imperial Chemical Industries PLC

01/25/2005

RPI 1777

Transferência deferida

#25.1

Transferido de: Shell Internationale Research Maatschappij B.V.

11/27/2001

RPI 1612

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

12/10/1996

RPI 1358

Solicitação de exame técnico

#4.1

06/22/1993

RPI 1177

Publicação do pedido de patente

#3.1

05/14/1991

RPI 1067

Pedido de patente depositado

#2.1

08/14/1990

RPI 1028

Patent monitoring

Track this patent in real time.

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