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Official data from INPI

SENSOR DE INCLUSÃO DE METAL FUNDIDO

Arquivada/ExtintaInvention PatentPCT · CA1990000141

Application data

Number

PI9007331

Type

Invention Patent

Filing

04/27/1990

Publication

04/21/1992

PCT

CA1990000141

Progress at the INPI

  1. Filing04/27/90
  2. Publication04/21/92
  3. Examination07/06/93
  4. Allowance04/30/96
  5. Grant08/26/97
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. Guthrie Research Associates Inc

CA

Sumitomo Metal Industries, Ltd

JP

Inventors

H. N. (pessoa física)

JP

R. G. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

JP

1/108872 · 04/27/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/04/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

08/26/1997

RPI 1395

Notificação para pagamento de retribuição

#13.1

02/18/1997

RPI 1368

Deferimento

#9.1

04/30/1996

RPI 1326

Exigência - art. 36 da LPI

#6.1

11/07/1995

RPI 1301

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Notificação de entrada na fase nacional - PCT

#1.3

04/21/1992

RPI 1116

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