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Official data from INPI

SELA DE IMPACTO APERFEIÇOADA PARA USO COM UMA CORREIA TRANSPORTADORA DE MATERIAL A GRANEL

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104319

Type

Invention Patent

Filing

10/07/1991

Publication

06/09/1992

Progress at the INPI

  1. Filing10/07/91
  2. Publication06/09/92
  3. Examination05/24/94
  4. Allowance04/18/95
  5. Grant10/31/95
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Richwood Industries, Inc.

US

Inventors

D. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/594,758 · 10/09/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/10/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

04/18/1995

RPI 1272

Solicitação de exame técnico

#4.1

05/24/1994

RPI 1225

Publicação do pedido de patente

#3.1

06/09/1992

RPI 1123

Pedido de patente depositado

#2.1

11/12/1991

RPI 1093

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