Pedido de patente depositado
#2.1
08/01/1989
RPI 980
Back to search
Official data from INPI
GRÃO DE ESMERIL À BASE DE CARBONETO DE SILÍCIO E PROCESSO PARA SUA PRODUÇÃO
Prazo de SigiloInvention Patent
Application data
Number
PI8902916Type
Invention Patent
Filing
06/16/1989
Publication
02/06/1990
Progress at the INPI
- Filing06/16/89
- Publication02/06/90
- Examination11/12/91
- Allowance
- Grant
- In force
Published on 02/06/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.
Latest action published by the INPI: 08/01/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Lonza Ltd (em alemão: Lonza AG) (em francês: Lonza SA)
CH
Inventors
R. D. (pessoa física)
CH
R. K. (pessoa física)
CH
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Retificação
#15.3
06/28/1994
RPI 1230
Solicitação de exame técnico
#4.1
11/12/1991
RPI 1093
Publicação do pedido de patente
#3.1
02/06/1990
RPI 1005
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.