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Official data from INPI

PROCESSO E APARELHO PARA OTIMIZAR AS AVALIACOES DAS CARACTERISTICAS DE DESINTEGRACAO DE NEUTRON TERMICO

ConcedidaInvention Patent

Application data

Number

PI7906854

Type

Invention Patent

Filing

10/26/1978

Publication

-

Progress at the INPI

  1. Filing10/26/78
  2. Publication
  3. Examination07/13/82
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SCHLUMBERGER SURENCO SA

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Inventors

J. L. (pessoa física)

J. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

07/26/1983

RPI 666

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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