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Official data from INPI

DERIVADO ACIDO CARBOXILICO

ConcedidaInvention Patent

Application data

Number

PI7905337

Type

Invention Patent

Filing

09/27/1978

Publication

-

Progress at the INPI

  1. Filing09/27/78
  2. Publication
  3. Examination07/13/82
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUBRIZOL CORP

See this company's full portfolio

Inventors

F. J. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Exigência - art. 36 da LPI

#6.1

08/28/1984

RPI 723

Exigência - art. 36 da LPI

#6.1

09/13/1983

RPI 673

6.2

02/01/1983

RPI 641

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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