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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE SAL DE METAL COM BASE EM EXCESSO NÃO-SULFURIZADO E COMPOSIÇÃO DE ÓLEO LUBRIFICANTE ACABADA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101283

Type

Invention Patent

Filing

04/01/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing04/01/91
  2. Publication11/05/91
  3. Examination12/28/93
  4. Allowance08/24/99
  5. Grant02/22/00
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BP Chemicals (Additives) Limited

GB

Lubrizol Adibis Holdings (UK) Limited

US

See this company's full portfolio

Inventors

A. P. (pessoa física)

GB

S. O. (pessoa física)

GB

S. C. (pessoa física)

GB

Technical data

Priority claims

GB

9007314.9 · 03/31/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/04/2011

06/04/2013

RPI 2213

Alteração de nome deferida

#25.4

Alterado de: BP Chemicals ( Additives ) Limited

04/25/2000

RPI 1529

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

08/24/1999

RPI 1494

Exigência - art. 36 da LPI

#6.1

01/26/1999

RPI 1464

Solicitação de exame técnico

#4.1

12/28/1993

RPI 1204

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

09/17/1991

RPI 1085

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