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Official data from INPI

PROCESSO E APARELHAGEM PARA ESPESSAMENTO COM FILTRAGEM

ArquivadaInvention Patent
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Application data

Number

PI8204760

Type

Invention Patent

Filing

08/13/1982

Publication

08/02/1983
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Progress at the INPI

  1. Filing08/13/82
  2. Publication08/02/83
  3. Abandoned09/17/85
  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.

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Latest action published by the INPI: 11/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. L. (pessoa física)

CA

E. R. (pessoa física)

CA

Inventors

D. L. (pessoa física)

CA

E. R. (pessoa física)

CA

Technical data

IPC Classification

B01D 29/35B01D 29/44B01D 29/52B01D 29/66

Priority claims

US

292,737 · 08/14/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

11/03/1987

RPI 889

6.2

03/24/1987

RPI 857

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

8.1

06/25/1985

RPI 766

Publicação do pedido de patente

#3.1

08/02/1983

RPI 667

Pedido de patente depositado

#2.1

09/28/1982

RPI 623

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 29/16; B01D 29/38.

03/27/2018

RPI 2464

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