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Official data from INPI

SACO DUPLO DE ABERTURAS SEPARADAS E PROCESSO DE FABRICAÇÃO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI8201870

Type

Invention Patent

Filing

04/02/1982

Publication

03/08/1983

Progress at the INPI

  1. Filing04/02/82
  2. Publication03/08/83
  3. Examination
  4. Allowance07/28/87
  5. Grant12/29/87
  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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CPC International Inc

US

See this company's full portfolio

Inventors

E. D. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

81 06774 · 04/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/24/1987

RPI 892

Deferimento

#9.1

07/28/1987

RPI 875

Exigência - art. 36 da LPI

#6.1

06/10/1986

RPI 816

6.2

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

03/08/1983

RPI 646

Pedido de patente depositado

#2.1

05/25/1982

RPI 605

Carta-patente expirada

#21.1

Patente extinta em 02/04/97

07/01/2008

RPI 1956

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