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Official data from INPI

SISTEMA DE DIREÇÃO SERVO-HIDRÁULICA.

Em AnáliseInvention Patent

Application data

Number

PI8009023

Type

Invention Patent

Filing

03/03/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing03/03/80
  2. Publication02/09/82
  3. Examination09/13/83
  4. Allowance06/05/84
  5. Grant12/26/84
  6. Terminated07/12/88

The patent was granted on 12/26/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar Tractor Co.

US

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Inventors

B. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

80/00228 · 03/03/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/05/1984

RPI 711

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

02/09/1982

RPI 590

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