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Official data from INPI

PROCESSO E DISPOSITIVO PARA O TRATAMENTO DE AGUA DE DESCARGA RADIOATIVA ORIUNDA DE UMA USINA DE CARGA NUCLEAR

ConcedidaInvention Patent

Application data

Number

PI8001732

Type

Invention Patent

Filing

03/22/1979

Publication

-

Progress at the INPI

  1. Filing03/22/79
  2. Publication
  3. Examination
  4. Allowance02/08/83
  5. Grant07/26/83
  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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RHEIN WESTFAEL ELECT WERK AG

Inventors

A. R. (pessoa física)

B. N. (pessoa física)

F. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/07/1983

RPI 659

Deferimento

#9.1

02/08/1983

RPI 642

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

Pedido de licença compulsória

#20.1

10/02/1990

RPI 1035

20.4

09/25/1990

RPI 1034

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