Pedido de patente depositado
#2.1
07/18/1989
RPI 978
Back to search
Official data from INPI
PROCESSO PARA PREPARAR UMA BORRACHA DE POLIBUTADIENO E UMA COMPOSIÇÃO DE BORRACHA DE POLIBUTADIENO COM ALTO TEOR DE VINILA APRESENTANDO CARACTERÍSTICAS DE CURA INTENSIFICADAS
Prazo de SigiloInvention Patent
Application data
Number
PI8902672Type
Invention Patent
Filing
06/07/1989
Publication
12/26/1990
Progress at the INPI
- Filing06/07/89
- Publication12/26/90
- Examination02/09/93
- Allowance12/21/99
- Grant06/27/00
- Expired12/26/12
The letters patent expired on 12/26/2012: 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: 07/18/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
K. C. (pessoa física)
US
L. W. (pessoa física)
US
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 27/06/2010
12/26/2012
RPI 2190
Concessão da patente
#16.1
06/27/2000
RPI 1538
Deferimento
#9.1
12/21/1999
RPI 1511
Exigência - art. 36 da LPI
#6.1
05/04/1999
RPI 1478
Exigência - art. 36 da LPI
#6.1
09/29/1998
RPI 1449
Solicitação de exame técnico
#4.1
02/09/1993
RPI 1158
Publicação do pedido de patente
#3.1
12/26/1990
RPI 1047
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.