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Official data from INPI

VÁLVULA OPERANDO SEM ATRITO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8707278

Type

Invention Patent

Filing

04/13/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing04/13/87
  2. Publication06/14/88
  3. Examination01/09/90
  4. Allowance01/22/91
  5. Grant10/29/91
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. P. (pessoa física)

FR

Societe Nationale D'Etude et de Construction de Moteurs D'Aviation"SNECMA" S.A.

FR

Inventors

D. G. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

8605288 · 04/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

06/14/1988

RPI 921

Carta-patente expirada

#21.1

Patente extinta em 13/04/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

Transferido por incorporação de: Societe Europeenne de Propulsion.

09/21/1999

RPI 1498

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento (variante)

#9.1.2

02/05/1991

RPI 1053

Deferimento

#9.1

01/22/1991

RPI 1051

Deferimento

#9.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

09/18/1990

RPI 1033

Solicitação de exame técnico

#4.1

01/09/1990

RPI 1001

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