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Official data from INPI

MONTAGEM INTEIRIÇA PARA SELAGEM DE UMA HASTE DE VÁLVULA

PublicadaInvention Patent

Application data

Number

PI8805271

Type

Invention Patent

Filing

10/13/1988

Publication

05/30/1989

Progress at the INPI

  1. Filing10/13/88
  2. Publication05/30/89
  3. Examination07/16/91
  4. Allowance09/15/92
  5. Grant04/27/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

E. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

108,494 · 10/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/30/1989

RPI 971

Pedido de patente depositado

#2.1

02/08/1989

RPI 955

Carta-patente expirada

#21.1

Patente extinta em 13/10/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Republicação - classificação IPC

#15.11

10/06/1992

RPI 1140

Deferimento

#9.1

09/15/1992

RPI 1137

Solicitação de exame técnico

#4.1

07/16/1991

RPI 1076

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