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Official data from INPI

CORTADOR ANULAR

ConcedidaInvention Patent

Application data

Number

PI8403392

Type

Invention Patent

Filing

07/06/1984

Publication

06/18/1985

Progress at the INPI

  1. Filing07/06/84
  2. Publication06/18/85
  3. Examination01/19/88
  4. Allowance10/04/88
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. H. (pessoa física)

US

See this company's full portfolio

Inventors

E. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

518.637 · 07/29/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Solicitação de exame técnico

#4.1

01/19/1988

RPI 900

15.19

11/10/1987

RPI 890

Retificação

#15.3

07/21/1987

RPI 874

Publicação do pedido de patente

#3.1

06/18/1985

RPI 765

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Carta-patente expirada

#21.1

Patente extinta em 06/07/99

07/08/2008

RPI 1957

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