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Official data from INPI

DISPOSITIVO TIPO RODA DENTADA PARA AVANÇAR TIRAS

Arquivada/ExtintaInvention PatentPCT · US1989004931

Application data

Number

PI8907248

Type

Invention Patent

Filing

10/31/1989

Publication

03/12/1991

PCT

US1989004931

Progress at the INPI

  1. Filing10/31/89
  2. Publication03/12/91
  3. Examination11/17/92
  4. Allowance03/01/95
  5. Grant08/29/95
  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

A. I. (pessoa física)

US

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Inventors

J. B. (pessoa física)

US

Technical data

Priority claims

US

07/284,516 · 12/15/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

08/29/1995

RPI 1291

Deferimento

#9.1

03/01/1995

RPI 1265

Solicitação de exame técnico

#4.1

11/17/1992

RPI 1146

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1991

RPI 1058

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