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Official data from INPI

EMBREAGEM UNIDIRECIONAL

Arquivada/ExtintaInvention PatentPCT · GB1989000661

Application data

Number

PI8907526

Type

Invention Patent

Filing

06/13/1989

Publication

06/11/1991

PCT

GB1989000661

Progress at the INPI

  1. Filing06/13/89
  2. Publication06/11/91
  3. Examination08/11/92
  4. Allowance06/21/94
  5. Grant03/01/95
  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

S. K. (pessoa física)

GB

S. B. (pessoa física)

GB

Inventors

S. K. (pessoa física)

GB

S. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8815929 · 07/05/1988

TW

77106019 · 08/31/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/06/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/01/1995

RPI 1265

Notificação para pagamento de retribuição

#13.1

10/25/1994

RPI 1247

Deferimento

#9.1

06/21/1994

RPI 1229

Exigência - art. 36 da LPI

#6.1

11/23/1993

RPI 1199

15.9

08/11/1992

RPI 1132

Solicitação de exame técnico

#4.1

08/11/1992

RPI 1132

Notificação de entrada na fase nacional - PCT

#1.3

06/11/1991

RPI 1071

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