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Official data from INPI

CASQUILHO COM EXCENTRICIDADES DIFERENTES

ConcedidaInvention Patent
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Application data

Number

PI8108360

Type

Invention Patent

Filing

12/21/1981

Publication

09/20/1983
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Progress at the INPI

  1. Filing12/21/81
  2. Publication09/20/83
  3. Examination11/26/85
  4. Allowance09/30/86
  5. Grant08/25/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METAL LEVE SA [BR]

Inventors

L. P. (pessoa física)

M. D. (pessoa física)

Technical data

IPC Classification

F16C 9/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Solicitação de exame técnico

#4.1

11/26/1985

RPI 788

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Carta-patente expirada

#21.1

Patente extinta em 21/12/96

08/19/2008

RPI 1963

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