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Official data from INPI

FREIO A DISCO

Arquivada/ExtintaInvention PatentPCT · US1989001193

Application data

Number

PI8907354

Type

Invention Patent

Filing

03/23/1989

Publication

03/26/1991

PCT

US1989001193

Progress at the INPI

  1. Filing03/23/89
  2. Publication03/26/91
  3. Examination09/10/91
  4. Allowance01/18/94
  5. Grant05/31/94
  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

Allied-Signal Inc

US

See this company's full portfolio

Inventors

A. T. (pessoa física)

US

R. D. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

183.576 · 04/19/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/03/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

01/18/1994

RPI 1207

Solicitação de exame técnico

#4.1

09/10/1991

RPI 1084

Notificação de entrada na fase nacional - PCT

#1.3

03/26/1991

RPI 1060

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