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Official data from INPI

CIRCUITO DE MEDIÇÃO DE UM SINAL DE ENTRADA.

Arquivada/ExtintaInvention PatentPCT · US1987000834

Application data

Number

PI8707676

Type

Invention Patent

Filing

04/16/1987

Publication

08/15/1989

PCT

US1987000834

Progress at the INPI

  1. Filing04/16/87
  2. Publication08/15/89
  3. Examination01/23/90
  4. Allowance06/15/93
  5. Grant11/30/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rosemount Inc

US

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Inventors

J. S. (pessoa física)

US

R. F. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

855,178 · 04/23/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 16/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/30/1993

RPI 1200

Deferimento

#9.1

06/15/1993

RPI 1176

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

Solicitação de exame técnico

#4.1

01/23/1990

RPI 1003

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