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Official data from INPI

SISTEMA DE LUBRIFICAÇÃO

PublicadaInvention Patent

Application data

Number

PI8702229

Type

Invention Patent

Filing

05/04/1987

Publication

02/17/1988

Progress at the INPI

  1. Filing05/04/87
  2. Publication02/17/88
  3. Examination05/29/90
  4. Allowance08/11/92
  5. Grant04/27/93
  6. Terminated10/17/95

The patent was granted on 04/27/1993 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: 02/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Castrol Limited

GB

See this company's full portfolio

Inventors

B. K. (pessoa física)

AT

B. A. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AU

PH 05694/86 · 05/01/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/17/1988

RPI 904

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

12/29/1992

RPI 1152

Deferimento

#9.1

08/11/1992

RPI 1132

Republicação - classificação IPC

#15.11

11/19/1991

RPI 1094

Exigência - art. 36 da LPI

#6.1

09/10/1991

RPI 1084

Solicitação de exame técnico

#4.1

05/29/1990

RPI 1020

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