Carta-patente expirada
#21.1
Patente extinta em 29/12/2008
12/18/2012
RPI 2189
Back to search
Official data from INPI
PROCESSO PARA A PRODUÇÃO DE ETANOL, GLICEROL, ÁCIDO SUCCÍNICO E GRÃOS SECOS DE DESTILADORES QUE FLUEM LIVREMENTE E ELEMENTOS SOLÚVEIS
Arquivada/ExtintaInvention PatentPCT · US1988004529
Application data
Number
PI8807863Type
Invention Patent
Filing
12/19/1988
Publication
10/09/1990
PCT
US1988004529 Progress at the INPI
- Filing12/19/88
- Publication10/09/90
- Examination08/20/91
- Allowance07/28/98
- Grant12/29/98
- Expired12/18/12
The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/18/2012. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
W. K. (pessoa física)
US
Inventors
W. K. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
12/29/1998
RPI 1460
Deferimento
#9.1
07/28/1998
RPI 1440
Conhecimento de parecer técnico
#7.1
02/07/1995
RPI 1262
Solicitação de exame técnico
#4.1
08/20/1991
RPI 1081
Notificação de entrada na fase nacional - PCT
#1.3
10/09/1990
RPI 1036
Related
Same category
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.