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

PROCESSO PARA PRODUÇÃO DE UM ESTOQUE BASE DE ÓLEO LUBRIFICANTE DESPARAFINADO A PARTIT DE UMA CARGA DE HIDROCARBONETOS.

ConcedidaInvention Patent

Application data

Number

PI8103730

Type

Invention Patent

Filing

06/11/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/11/81
  2. Publication03/02/82
  3. Examination12/20/83
  4. Allowance02/12/86
  5. Grant09/29/87
  6. Terminated02/04/92

The patent was granted on 09/29/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MOBIL OIL CORP

See this company's full portfolio

Inventors

G. W. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

159.011 · 06/12/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

110

04/07/1987

RPI 859

Recurso

#12.1

05/20/1986

RPI 813

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Pedido de certificado de adição de invenção

#5.1

05/08/1984

RPI 707

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

Patent monitoring

Track this patent in real time.

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