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Official data from INPI

PROCESSO PARA CONTROLAR O PROCESSO DE LIMPEZA, NA LIMPEZA DO MATERIAL DE FILTRO, EM FILTRO DE BARREIRA TÊXTIL..

ConcedidaInvention Patent

Application data

Number

PI8000747

Type

Invention Patent

Filing

02/07/1980

Publication

-

Progress at the INPI

  1. Filing02/07/80
  2. Publication
  3. Examination12/14/82
  4. Allowance05/12/87
  5. Grant10/27/87
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. F. (pessoa física)

Inventors

A. R. (pessoa física)

Technical data

IPC Classification

Priority claims

SE

7901181 · 02/12/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Deferimento

#9.1

05/12/1987

RPI 864

Exigência - art. 36 da LPI

#6.1

05/20/1986

RPI 813

Exigência - art. 36 da LPI

#6.1

04/23/1985

RPI 757

Republicação - classificação IPC

#15.11

09/25/1984

RPI 727

Conhecimento de parecer técnico

#7.1

05/02/1984

RPI 706

14.4

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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