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Official data from INPI

DISPOSITIVO ANTI-TORÇÃO PARA LAGARTAS PARA VEÍCULOS DO TIPO DE RASTOS E MÉTODO.

Em AnáliseInvention Patent

Application data

Number

PI7909023

Type

Invention Patent

Filing

08/23/1979

Publication

-

Progress at the INPI

  1. Filing08/23/79
  2. Publication
  3. Examination06/28/83
  4. Allowance09/25/84
  5. Grant05/28/85
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar Tractor Co.

US

See this company's full portfolio

Inventors

M. T. (pessoa física)

Technical data

IPC Classification

Priority claims

US

79/00644 · 08/23/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

04/05/1988

RPI 911

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

06/28/1983

RPI 662

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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