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Official data from INPI

Mecanismo de mudança.

Em AnáliseInvention Patent

Application data

Number

PI8304412

Type

Invention Patent

Filing

08/16/1983

Publication

06/12/1984

Progress at the INPI

  1. Filing08/16/83
  2. Publication06/12/84
  3. Examination07/29/86
  4. Allowance12/29/87
  5. Grant08/30/88
  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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

See this company's full portfolio

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

420.194 · 09/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.7

11/22/1988

RPI 944

Concessão da patente

#16.1

08/30/1988

RPI 932

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

05/19/1987

RPI 865

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

06/12/1984

RPI 712

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Carta-patente expirada

#21.1

Patente extinta em 16/08/98

07/01/2008

RPI 1956

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