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Official data from INPI

CONSTRUÇÃO DE JUNTA HERMÉTICA MECÂNICA

ConcedidaInvention Patent

Application data

Number

PI8502441

Type

Invention Patent

Filing

05/24/1985

Publication

01/28/1986

Progress at the INPI

  1. Filing05/24/85
  2. Publication01/28/86
  3. Examination03/08/88
  4. Allowance04/04/89
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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

D. C. (pessoa física)

US

Inventors

D. A. (pessoa física)

US

W. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

616,457 · 06/01/1984

US

684,874 · 12/21/1984

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

08/01/1989

RPI 980

Deferimento

#9.1

04/04/1989

RPI 963

Solicitação de exame técnico

#4.1

03/08/1988

RPI 907

Publicação do pedido de patente

#3.1

01/28/1986

RPI 797

Pedido de patente depositado

#2.1

07/30/1985

RPI 771

Carta-patente expirada

#21.1

Patente extinta em 24/05/2000

07/15/2008

RPI 1958

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