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Official data from INPI

MATERIAL DE FILTRO DE CAMADAS MÚLTIPLAS, E PROCESSO PARA SUA PRODUÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8207540

Type

Invention Patent

Filing

12/28/1982

Publication

07/31/1984

Progress at the INPI

  1. Filing12/28/82
  2. Publication07/31/84
  3. Examination11/20/84
  4. Allowance06/21/88
  5. Grant05/30/89
  6. Terminated04/18/95

The patent was granted on 05/30/1989 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gessner & Co. GMBH.

Inventors

A. H. (pessoa física)

A. G. (pessoa física)

S. H. (pessoa física)

Technical data

Priority claims

EP

82 109 784.7 · 10/22/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/21/1988

RPI 922

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Exigência - art. 36 da LPI

#6.1

05/14/1985

RPI 760

Solicitação de exame técnico

#4.1

11/20/1984

RPI 735

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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