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Official data from INPI

SISTEMA DE CONTROLE AUTOMÁTICO PARA UM IMPLEMENTO DE TRABALHO DE UMA MÁQUINA DE ESCAVAÇÃO

Arquivada/ExtintaInvention PatentPCT · US1989004730

Application data

Number

PI8907900

Type

Invention Patent

Filing

10/26/1989

Publication

04/14/1992

PCT

US1989004730

Progress at the INPI

  1. Filing10/26/89
  2. Publication04/14/92
  3. Examination06/15/93
  4. Allowance05/23/95
  5. Grant01/30/96
  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

Caterpillar, Inc.

US

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Inventors

W. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/394,919 · 08/17/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

01/30/1996

RPI 1313

Notificação para pagamento de retribuição

#13.1

10/03/1995

RPI 1296

Deferimento

#9.1

05/23/1995

RPI 1277

Exigência - art. 36 da LPI

#6.1

11/22/1994

RPI 1251

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

04/14/1992

RPI 1115

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