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Official data from INPI

FILTRO RESILIENTE E APERFEICOAMENTO EM SISTEMA DE LIMPEZA DE AR

ArquivadaInvention Patent

Application data

Number

PI7802921

Type

Invention Patent

Filing

05/16/1977

Publication

-

Progress at the INPI

  1. Filing05/16/77
  2. Publication
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/06/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DONALDSON CO INC

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

11/06/1984

RPI 733

Exigência - art. 36 da LPI

#6.1

04/17/1984

RPI 704

Exigência - art. 36 da LPI

#6.1

09/20/1983

RPI 674

Exigência - art. 36 da LPI

#6.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

09/14/1982

RPI 621

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