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Official data from INPI

ESTRUTURA DE VEDAÇÃO MECÂNICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000187

Type

Invention Patent

Filing

01/18/1990

Publication

11/06/1990

Progress at the INPI

  1. Filing01/18/90
  2. Publication11/06/90
  3. Examination12/01/92
  4. Allowance01/18/94
  5. Grant08/30/94
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

Inventors

H. M. (pessoa física)

US

L. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/300,475 · 01/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/01/2005

05/11/2010

RPI 2053

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

05/10/1994

RPI 1223

Deferimento

#9.1

01/18/1994

RPI 1207

Solicitação de exame técnico

#4.1

12/01/1992

RPI 1148

Publicação do pedido de patente

#3.1

11/06/1990

RPI 1040

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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