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Official data from INPI

PROCESSO E MÁQUINA PARA PREPARAR PÓS DE CARGA DE PROPULSÃO MONOBÁSICOS COM ÁLCOOL E ÉTER COMO SOLVENTES

Arquivada/ExtintaInvention PatentPCT · EP1990000615

Application data

Number

PI9006725

Type

Invention Patent

Filing

04/17/1990

Publication

08/06/1991

PCT

EP1990000615

Progress at the INPI

  1. Filing04/17/90
  2. Publication08/06/91
  3. Examination09/24/91
  4. Allowance04/09/96
  5. Grant08/26/97
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WNC-Nitrochemie GmbH

DE

Inventors

W. M. (pessoa física)

DE

Technical data

Priority claims

DE

P 3913603.5 · 04/25/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/04/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

08/26/1997

RPI 1395

Notificação para pagamento de retribuição

#13.1

02/25/1997

RPI 1369

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

10/03/1995

RPI 1296

Solicitação de exame técnico

#4.1

09/24/1991

RPI 1086

Notificação de entrada na fase nacional - PCT

#1.3

08/06/1991

RPI 1079

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