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Official data from INPI

COMPOSIÇÃO DE ÓLEO LUBRIFICANTE, E, CONCENTRADO

PublicadaInvention Patent

Application data

Number

PI8806854

Type

Invention Patent

Filing

12/23/1988

Publication

08/29/1989

Progress at the INPI

  1. Filing12/23/88
  2. Publication08/29/89
  3. Examination08/13/91
  4. Allowance09/08/98
  5. Grant12/29/98
  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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents, Inc

US

See this company's full portfolio

Inventors

T. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

87 29963 · 12/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/29/1989

RPI 984

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Carta-patente expirada

#21.1

Patente extinta em 29/12/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

DEFERIDO DE ACORDO COM O ARTIGO 229 DA LEI 9279 DE 14/05/96

09/08/1998

RPI 1446

Exigência - art. 36 da LPI

#6.1

04/07/1998

RPI 1424

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

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