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Official data from INPI

UNIDADE DE RESFRIAMENTO E FILTRO DE ÓLEO.

ConcedidaInvention Patent

Application data

Number

PI8305751

Type

Invention Patent

Filing

02/11/1983

Publication

01/10/1984

Progress at the INPI

  1. Filing02/11/83
  2. Publication01/10/84
  3. Examination07/17/84
  4. Allowance06/09/87
  5. Grant03/29/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cummins Engine Company, Inc

US

See this company's full portfolio

Inventors

P. [. (pessoa física)

Technical data

IPC Classification

Priority claims

US

347.969 · 02/11/1982

US

83/00176 · 02/10/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

07/17/1984

RPI 717

Notificação de entrada na fase nacional - PCT

#1.3

01/10/1984

RPI 690

Carta-patente expirada

#21.1

Patente extinta em 11/02/98

07/01/2008

RPI 1956

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