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Official data from INPI

REGULADOR DE FREIO

Arquivada/ExtintaInvention PatentPCT · US1989003234

Application data

Number

PI8907622

Type

Invention Patent

Filing

07/26/1989

Publication

07/02/1991

PCT

US1989003234

Progress at the INPI

  1. Filing07/26/89
  2. Publication07/02/91
  3. Examination10/29/91
  4. Allowance11/17/92
  5. Grant05/25/93
  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

D. F. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

238.950 · 08/31/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/07/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

04/06/1993

RPI 1166

Deferimento

#9.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

Notificação de entrada na fase nacional - PCT

#1.3

07/02/1991

RPI 1074

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