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Official data from INPI

CONJUNTO DE VEDAÇÃO DE FACE TERMINAL.

Em AnáliseInvention Patent

Application data

Number

PI7909054

Type

Invention Patent

Filing

12/03/1979

Publication

10/20/1981

Progress at the INPI

  1. Filing12/03/79
  2. Publication10/20/81
  3. Examination05/17/83
  4. Allowance04/08/86
  5. Grant09/29/87
  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

R. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

79/01036 · 12/03/1979

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

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

08/11/1987

RPI 877

110

05/12/1987

RPI 864

Recurso

#12.1

08/19/1986

RPI 826

Deferimento

#9.1

04/08/1986

RPI 807

Conhecimento de parecer técnico

#7.1

03/07/1984

RPI 698

Pedido de certificado de adição de invenção

#5.1

10/04/1983

RPI 676

Solicitação de exame técnico

#4.1

05/17/1983

RPI 656

Notificação de entrada na fase nacional - PCT

#1.3

10/20/1981

RPI 574

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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