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Official data from INPI

MECANISMO EXCITADOR E SENSORES DE VELOCIDADE FERROMAGNÉTICOS PARA UM DEBITÔMETRO DE MASSA CORIOLIS

Arquivada/ExtintaInvention PatentPCT · US1987001762

Application data

Number

PI8707870

Type

Invention Patent

Filing

07/21/1987

Publication

10/31/1989

PCT

US1987001762

Progress at the INPI

  1. Filing07/21/87
  2. Publication10/31/89
  3. Examination06/19/90
  4. Allowance02/04/92
  5. Grant11/24/92
  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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Micro Motion, Inc

US

See this company's full portfolio

Inventors

B. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

929.979 · 11/12/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Carta-patente expirada

#21.1

Patente extinta em 21/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

06/09/1992

RPI 1123

Deferimento

#9.1

02/04/1992

RPI 1105

Solicitação de exame técnico

#4.1

06/19/1990

RPI 1023

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