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Official data from INPI

SONDA PARA USO NA DETECCÃO DE PARTÍCULAS METÁLICAS E ARRANJO PARA DETECCÃO DE PARTÍCULAS METÁLICAS

Arquivada/ExtintaInvention PatentPCT · US1989005869

Application data

Number

PI8907863

Type

Invention Patent

Filing

12/22/1989

Publication

10/01/1991

PCT

US1989005869

Progress at the INPI

  1. Filing12/22/89
  2. Publication10/01/91
  3. Examination03/30/93
  4. Allowance11/29/94
  5. Grant07/25/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

A. W. (pessoa física)

US

H. R. (pessoa física)

US

R. R. (pessoa física)

US

W. V. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

290.531 · 12/27/1988

US

455.105 · 12/22/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

04/04/1995

RPI 1270

Deferimento

#9.1

11/29/1994

RPI 1252

Exigência - art. 36 da LPI

#6.1

06/14/1994

RPI 1228

Solicitação de exame técnico

#4.1

03/30/1993

RPI 1165

Notificação de entrada na fase nacional - PCT

#1.3

10/01/1991

RPI 1087

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