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

PROCESSO PARA PRODUZIR UM ARTIGO DE POLÍMERO DE OLEFINA

Em ExigênciaInvention Patent

Application data

Number

PI8304444

Type

Invention Patent

Filing

08/17/1983

Publication

03/27/1984

Progress at the INPI

  1. Filing08/17/83
  2. Publication03/27/84
  3. Examination05/27/86
  4. Allowance06/12/90
  5. Grant11/27/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montell Technology Company B.V.

NL

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

C. W. (pessoa física)

US

T. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

409744 · 08/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/03/1989

RPI 989

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

03/27/1984

RPI 701

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Carta-patente expirada

#21.1

Patente extinta em 17/08/98

07/01/2008

RPI 1956

Transferência deferida

#25.1

11/25/1997

RPI 1408

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

09/25/1990

RPI 1034

Deferimento

#9.1

06/12/1990

RPI 1022

Patent monitoring

Track this patent in real time.

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