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Official data from INPI

UM METODO DE PRODUCAO DE PAPEL FILTRANTE PARA SER USADO EM FILTRACAO E O PRODUTO PROPRIAMENTE DITO

IndeferidaInvention Patent

Application data

Number

PI7802718

Type

Invention Patent

Filing

04/28/1978

Publication

-

Progress at the INPI

Under appeal
  1. Filing04/28/78
  2. Publication
  3. Examination
  4. Refused01/03/84
  5. Grant
  6. In force

The application was refused by the INPI on 01/03/1984. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/03/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. F. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

01/03/1984

RPI 689

15.0

04/13/1982

RPI 599

Conhecimento de parecer técnico

#7.1

01/12/1982

RPI 586

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