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Official data from INPI

LEITO DE RESINA TROCADORA DE IONS, PROCESSO PARA DESIONIZAR UM MEIO FLUIDO E PROCESSO PARA DESIONIZAR UM MEIO FLUIDO E PROCESSO PARA FABRICAR UM ELITO DE RESINA TROCADORA DE IONS

ConcedidaInvention Patent

Application data

Number

PI8103136

Type

Invention Patent

Filing

05/22/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing05/22/80
  2. Publication02/09/82
  3. Examination02/14/84
  4. Allowance08/06/85
  5. Grant03/25/86
  6. Terminated06/20/95

The patent was granted on 03/25/1986 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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROHM & HAAS

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Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

10/16/1984

RPI 730

Solicitação de exame técnico

#4.1

02/14/1984

RPI 695

Publicação do pedido de patente

#3.1

02/09/1982

RPI 590

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

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