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Official data from INPI

CONJUNTO DE VÁLVULA DE VENTILAÇÃO AUTOMÁTICA PARA DRENAR LÍQUIDO DE UM VASO

Arquivada/ExtintaInvention PatentPCT · US1990000036

Application data

Number

PI9004510

Type

Invention Patent

Filing

01/08/1990

Publication

07/30/1991

PCT

US1990000036

Progress at the INPI

  1. Filing01/08/90
  2. Publication07/30/91
  3. Examination04/14/92
  4. Allowance03/15/94
  5. Grant11/29/94
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fleetguard, Inc

US

Fleetguard, Inc.

US

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Inventors

D. F. (pessoa física)

FR

J. B. (pessoa física)

FR

P. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

293,964 · 01/06/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/01/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

04/14/1992

RPI 1115

14.1

12/17/1991

RPI 1098

Notificação de entrada na fase nacional - PCT

#1.3

07/30/1991

RPI 1078

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