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Official data from INPI

PROCESSO E APARELHO DE PLASMAFERESE POR FILTRACAO

ConcedidaInvention Patent

Application data

Number

PI8205658

Type

Invention Patent

Filing

10/02/1981

Publication

08/30/1983

Progress at the INPI

  1. Filing10/02/81
  2. Publication08/30/83
  3. Examination11/05/85
  4. Allowance09/27/88
  5. Grant05/30/89
  6. Terminated01/03/95

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.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

R. M. (pessoa física)

Technical data

IPC Classification

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

01/10/1989

RPI 951

Deferimento

#9.1

09/27/1988

RPI 936

Conhecimento de parecer técnico

#7.1

02/23/1988

RPI 905

Solicitação de exame técnico

#4.1

11/05/1985

RPI 785

Publicação do pedido de patente

#3.1

08/30/1983

RPI 671

Pedido de patente depositado

#2.1

11/16/1982

RPI 630

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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