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Official data from INPI

DISPOSITIVO MECÂNICO DE SUSPENSÃO PARA O TRENÓ DAS CARREGADORAS DE CANA DE AÇÚCAR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006244

Type

Invention Patent

Filing

12/07/1990

Publication

09/24/1991

Progress at the INPI

  1. Filing12/07/90
  2. Publication09/24/91
  3. Examination02/11/92
  4. Allowance11/14/95
  5. Grant08/27/96
  6. Expired06/08/10

The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centro de Investigacion Y Asistência Técnica Del Estado de Queretaro, A.C.

MX

Inventors

D. L. (pessoa física)

MX

D. S. (pessoa física)

MX

Technical data

IPC Classification

Priority claims

MX

18734 · 12/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/12/2005

06/08/2010

RPI 2057

Concessão da patente

#16.1

08/27/1996

RPI 1343

Deferimento

#9.1

11/14/1995

RPI 1302

Exigência - art. 36 da LPI

#6.1

03/07/1995

RPI 1266

Solicitação de exame técnico

#4.1

02/11/1992

RPI 1106

Publicação do pedido de patente

#3.1

09/24/1991

RPI 1086

Pedido de patente depositado

#2.1

05/21/1991

RPI 1068

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