Carta-patente expirada
#21.1
Patente extinta em 24/10/2004
12/29/2009
RPI 2034
Back to search
Official data from INPI
PROCESSO PARA SINTETIZAR N,N'-DITIOBIS (SULFONAMIDAS)
Arquivada/ExtintaInvention Patent
Application data
Number
PI8905403Type
Invention Patent
Filing
10/24/1989
Publication
10/16/1990
Progress at the INPI
- Filing10/24/89
- Publication10/16/90
- Examination03/16/93
- Allowance12/26/95
- Grant11/26/96
- Expired12/29/09
The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
N. S. (pessoa física)
US
R. H. (pessoa física)
US
S. R. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
11/26/1996
RPI 1356
Notificação para pagamento de retribuição
#13.1
06/25/1996
RPI 1334
Deferimento
#9.1
12/26/1995
RPI 1308
Exigência - art. 36 da LPI
#6.1
04/25/1995
RPI 1273
Solicitação de exame técnico
#4.1
03/16/1993
RPI 1163
Publicação do pedido de patente
#3.1
10/16/1990
RPI 1037
Pedido de patente depositado
#2.1
03/20/1990
RPI 1010
Related
From the same holder
Same category
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.