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Official data from INPI

PROCESSO DE PREPARAÇÃO DE ADITIVOS DETERGENTES-DISPERSANTES SUPERALCALINIZADOS ESTÁVEIS À HIDRÓLISE PARA ÓLEOS LUBRIFICANTES, E, COMPOSIÇÕES LUBRIFICANTES CONTENDO TAIS ADITIVOS.

Em AnáliseInvention Patent

Application data

Number

PI8604401

Type

Invention Patent

Filing

09/15/1986

Publication

05/12/1987

Progress at the INPI

  1. Filing09/15/86
  2. Publication05/12/87
  3. Examination10/06/87
  4. Allowance02/24/93
  5. Grant08/31/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Orogil

FR

See this company's full portfolio

Inventors

S. L. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85 13731 · 09/17/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Publicação do pedido de patente

#3.1

05/12/1987

RPI 864

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Carta-patente expirada

#21.1

Patente extinta em 15/09/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/08/1993

RPI 1175

Deferimento

#9.1

02/24/1993

RPI 1160

Exigência - art. 36 da LPI

#6.1

11/19/1991

RPI 1094

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