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Official data from INPI

Embreagem de mola.

ConcedidaInvention Patent

Application data

Number

PI8307511

Type

Invention Patent

Filing

09/12/1983

Publication

08/14/1984

Progress at the INPI

  1. Filing09/12/83
  2. Publication08/14/84
  3. Examination06/17/86
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

417.227 · 09/13/1983

US

83/01398 · 09/13/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

07/28/1987

RPI 875

Solicitação de exame técnico

#4.1

06/17/1986

RPI 817

Notificação de entrada na fase nacional - PCT

#1.3

08/14/1984

RPI 721

Carta-patente expirada

#21.1

Patente extinta em 12/09/98

07/01/2008

RPI 1956

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