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

COMPOSIÇÃO ESTABILIZADA DE COPOLÍMERO COMPREENDENDO UM COPOLÍMERO ALTERNANTE DE MONÓXIDO DE CARBONO E UM COMPOSTO OLEFINICAMENTE INSATURADO

PublicadaInvention Patent
Talk to an expert

Application data

Number

PI8900316

Type

Invention Patent

Filing

01/26/1989

Publication

09/19/1989
View on INPI

Progress at the INPI

  1. Filing01/26/89
  2. Publication09/19/89
  3. Examination09/17/91
  4. Allowance03/24/98
  5. Grant11/24/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

H. W. (pessoa física)

NL

J. S. (pessoa física)

NL

R. L. (pessoa física)

US

Technical data

IPC Classification

C08K 5/13C08L 73/00

Priority claims

GB

8801995 · 01/29/1988

GB

8803035 · 02/10/1988

GB

8804726 · 02/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/19/1989

RPI 987

Pedido de patente depositado

#2.1

03/07/1989

RPI 959

Carta-patente expirada

#21.1

Patente extinta em 26/01/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

03/24/1998

RPI 1422

Exigência - art. 36 da LPI

#6.1

04/08/1997

RPI 1375

Exigência - art. 36 da LPI

#6.1

09/27/1994

RPI 1243

Solicitação de exame técnico

#4.1

09/17/1991

RPI 1085

Related

Patent monitoring

Track this patent in real time.

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