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Official data from INPI

VÁLVULA DE BORBOLETA

PublicadaInvention Patent

Application data

Number

PI8801691

Type

Invention Patent

Filing

04/08/1988

Publication

11/16/1988

Progress at the INPI

  1. Filing04/08/88
  2. Publication11/16/88
  3. Examination04/16/91
  4. Allowance02/11/92
  5. Grant11/24/92
  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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bray International, Inc.

US

See this company's full portfolio

Inventors

F. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

037.196 · 04/10/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/16/1988

RPI 943

Pedido de patente depositado

#2.1

08/16/1988

RPI 930

Carta-patente expirada

#21.1

Patente extinta em 08/04/2003

09/02/2008

RPI 1965

201

11/15/1994

RPI 1250

Pedido de licença voluntária

#17.1

02/01/1994

RPI 1209

Concessão da patente

#16.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

06/30/1992

RPI 1126

Deferimento

#9.1

02/11/1992

RPI 1106

Solicitação de exame técnico

#4.1

04/16/1991

RPI 1063

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