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Official data from INPI

COMPOSIÇÃO DE GRAXA LUBRIFICANTE.

ConcedidaInvention Patent

Application data

Number

PI8000658

Type

Invention Patent

Filing

02/04/1980

Publication

-

Progress at the INPI

  1. Filing02/04/80
  2. Publication
  3. Examination09/28/82
  4. Allowance12/29/87
  5. Grant06/28/88
  6. Terminated11/03/93

The patent was granted on 06/28/1988 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: 06/28/1988. 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

A. A. (pessoa física)

C. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

009.742 · 02/05/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Conhecimento de parecer técnico

#7.1

05/10/1983

RPI 655

Solicitação de exame técnico

#4.1

09/28/1982

RPI 623

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C10M 1/32; C10M 3/26.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

11/03/1993

RPI 1196

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