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Official data from INPI

FREIO A DISCO OPERADO ELETRICAMENTE

Arquivada/ExtintaInvention PatentPCT · US1987002348

Application data

Number

PI8707925

Type

Invention Patent

Filing

09/15/1987

Publication

10/31/1989

PCT

US1987002348

Progress at the INPI

  1. Filing09/15/87
  2. Publication10/31/89
  3. Examination09/18/90
  4. Allowance10/29/91
  5. Grant09/29/92
  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

A. C. (pessoa física)

US

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Inventors

A. T. (pessoa física)

P. G. (pessoa física)

R. J. (pessoa física)

US

Technical data

Priority claims

US

946.400 · 12/23/1986

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 15/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/29/1992

RPI 1139

Notificação para pagamento de retribuição

#13.1

03/10/1992

RPI 1110

Deferimento

#9.1

10/29/1991

RPI 1091

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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