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Official data from INPI

CONJUNTO DE CAIXA DE EMPANQUE

ConcedidaInvention Patent

Application data

Number

PI8202226

Type

Invention Patent

Filing

04/16/1982

Publication

03/29/1983

Progress at the INPI

  1. Filing04/16/82
  2. Publication03/29/83
  3. Examination06/18/85
  4. Allowance01/17/89
  5. Grant08/29/89
  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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Keystone International, Inc.

US

See this company's full portfolio

Inventors

W. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

254.958 · 04/16/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/17/1989

RPI 952

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Exigência - art. 36 da LPI

#6.1

02/25/1986

RPI 801

Solicitação de exame técnico

#4.1

06/18/1985

RPI 765

Publicação do pedido de patente

#3.1

03/29/1983

RPI 649

Pedido de patente depositado

#2.1

06/08/1982

RPI 607

Carta-patente expirada

#21.1

Patente extinta em 16/04/97

07/01/2008

RPI 1956

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