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Official data from INPI

DIFERENCIAL DE DIREÇÃO PLANETÁRIO.

Em AnáliseInvention Patent

Application data

Number

PI8009104

Type

Invention Patent

Filing

09/02/1980

Publication

07/13/1982

Progress at the INPI

  1. Filing09/02/80
  2. Publication07/13/82
  3. Examination01/17/84
  4. Allowance04/09/85
  5. Grant10/29/85
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 03/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar, Inc.

US

Caterpillar Tractor Co.

US

See this company's full portfolio

Inventors

R. W. (pessoa física)

W. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

PCT 80/01126 · 09/02/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

03/22/1988

RPI 909

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Republicação - classificação IPC

#15.11

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

08/14/1984

RPI 721

Solicitação de exame técnico

#4.1

01/17/1984

RPI 691

Notificação de entrada na fase nacional - PCT

#1.3

07/13/1982

RPI 612

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

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