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Official data from INPI

FECHAMENTO DE UNIDADE SELADA DE FILTROS PARA OLEO LUBRIFICANTE DE MOTORES

Em AnáliseInvention Patent

Application data

Number

PI7708783

Type

Invention Patent

Filing

12/29/1977

Publication

-

Progress at the INPI

  1. Filing12/29/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant09/08/82
  6. Terminated08/20/85

The patent was granted on 09/08/1982 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: 08/20/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DALL ANESE METALURG LTD

Inventors

D. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/20/1985

RPI 774

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

Concessão da patente

#16.1

09/08/1982

RPI 620

15.0

02/02/1982

RPI 589

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