(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA O TRATAMENTO ULTERIOR DO RESÍDUO DE DESTILAÇÃO A VÁCUO EM UMA REFINARIA DE ÓLEO CRU

Arquivada/ExtintaInvention Patent

Application data

Number

PI8707398

Type

Invention Patent

Filing

07/16/1987

Publication

09/13/1988

Progress at the INPI

  1. Filing07/16/87
  2. Publication09/13/88
  3. Examination05/01/90
  4. Allowance01/28/97
  5. Grant08/25/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Buss AG

CH

See this company's full portfolio

Inventors

P. K. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

2954/86 · 07/23/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

09/13/1988

RPI 934

Carta-patente expirada

#21.1

Patente extinta em 25/08/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

08/25/1998

RPI 1444

6.8

03/10/1998

RPI 1420

6.7

12/23/1997

RPI 1409

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

01/28/1997

RPI 1365

Exigência - art. 36 da LPI

#6.1

04/30/1996

RPI 1326

Conhecimento de parecer técnico

#7.1

10/10/1995

RPI 1297

Solicitação de exame técnico

#4.1

05/01/1990

RPI 1016

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.