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Official data from INPI

PROCESSO E DISPOSITIVO PARA A EXCITACAO SELETIVA DE ISOTOPOS DE MOLECULAS DE HEXAFLUORETO DE URANIO GASOSAS OU EM FORMA DE VAPOR,ATRAVES DE RAIOS LASER

ConcedidaInvention Patent

Application data

Number

PI7901262

Type

Invention Patent

Filing

03/02/1978

Publication

-

Progress at the INPI

  1. Filing03/02/78
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

URANIT GMBH

Inventors

F. E. (pessoa física)

J. H. (pessoa física)

V. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Republicação - classificação IPC

#15.11

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

08/31/1982

RPI 619

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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