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Official data from INPI

PROCESSADOR ELETRÔNICO DE SINAIS

Arquivada/ExtintaInvention PatentPCT · US1987002209

Application data

Number

PI8707448

Type

Invention Patent

Filing

09/03/1987

Publication

11/01/1988

PCT

US1987002209

Progress at the INPI

  1. Filing09/03/87
  2. Publication11/01/88
  3. Examination05/22/90
  4. Allowance02/01/94
  5. Grant08/30/94
  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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Micro Motion, Inc

US

See this company's full portfolio

Inventors

A. S. (pessoa física)

US

J. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

903.337 · 09/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

11/01/1988

RPI 941

Carta-patente expirada

#21.1

Patente extinta em 03/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

05/24/1994

RPI 1225

Deferimento

#9.1

02/01/1994

RPI 1209

Solicitação de exame técnico

#4.1

05/22/1990

RPI 1019

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