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Official data from INPI

FERRAMENTA PARA PERFILAGEM DE POÇO, MONITOR DE FONTE DE NEUTRONS E SISTEMA DETECTOR DE NEUTRONS

Em AnáliseInvention PatentPCT · US1986001227

Application data

Number

PI8607171

Type

Invention Patent

Filing

06/05/1986

Publication

06/14/1988

PCT

US1986001227

Progress at the INPI

  1. Filing06/05/86
  2. Publication06/14/88
  3. Examination11/07/89
  4. Allowance12/24/91
  5. Grant10/27/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Prad Research and Development N.V.

NL

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Inventors

S. A. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Solicitação de exame não realizada

#4.2

08/29/1989

RPI 984

Notificação de entrada na fase nacional - PCT

#1.3

06/14/1988

RPI 921

Carta-patente expirada

#21.1

Patente extinta em 05/06/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

05/19/1992

RPI 1120

Deferimento

#9.1

12/24/1991

RPI 1099

Exigência - art. 36 da LPI

#6.1

06/11/1991

RPI 1071

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