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Official data from INPI

PROCESSO PARA A PRODUCAO DE TABLETES CERAMICOS DE COMBUSTIVEL PARA UTILIZACAO EM REATORES NUCLEARES

ConcedidaInvention Patent

Application data

Number

PI8003211

Type

Invention Patent

Filing

05/25/1979

Publication

-

Progress at the INPI

  1. Filing05/25/79
  2. Publication
  3. Examination08/10/82
  4. Allowance01/02/85
  5. Grant06/25/85
  6. Expired06/13/95

The letters patent expired on 06/13/1995: 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NUKEM GMBH

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Inventors

H. M. (pessoa física)

H. H. (pessoa física)

K. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

Republicação - classificação IPC

#15.11

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

02/07/1984

RPI 694

Solicitação de exame técnico

#4.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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