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Official data from INPI

COMPOSIÇÃO DE ÓLEO LUBRIFICANTE

Em AnáliseInvention Patent

Application data

Number

PI8103615

Type

Invention Patent

Filing

06/08/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/08/81
  2. Publication03/02/82
  3. Examination02/28/84
  4. Allowance08/06/85
  5. Grant03/25/86
  6. Terminated05/24/88

The patent was granted on 03/25/1986 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

R. D. (pessoa física)

Technical data

Priority claims

US

157.225 · 06/09/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

02/28/1984

RPI 697

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C10M 1/38; C10M 3/32.

03/27/2018

RPI 2464

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