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Official data from INPI

DISPOSITIVO DE VEDAÇÃO DE FLUIDOS.

ConcedidaInvention Patent

Application data

Number

PI8208102

Type

Invention Patent

Filing

12/10/1982

Publication

11/27/1984

Progress at the INPI

  1. Filing12/10/82
  2. Publication11/27/84
  3. Examination06/16/87
  4. Allowance12/29/87
  5. Grant08/30/88
  6. Terminated10/16/90

The patent was granted on 08/30/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar Tractor Co.

US

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Inventors

B. B. (pessoa física)

J. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

82/01729 · 12/10/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

14.1

03/29/1988

RPI 910

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

11/27/1984

RPI 736

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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