Anuidade - prazo legal encerrado
#18.2
06/07/1988
RPI 920
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Official data from INPI
PROCESSO PARA A PREPARACAO DE NH3 E SO2 DE SAL DE AMONIO DE ACIDO SULFURICO,CONTAMINADO
Em AnáliseInvention Patent
Progress at the INPI
- Filing05/26/78
- Publication
- Examination01/26/82
- Allowance07/12/83
- Grant01/31/84
- Terminated06/07/88
The patent was granted on 01/31/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 06/07/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
N. K. (pessoa física)
STAMICARBON
Inventors
H. T. (pessoa física)
W. W. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
16.3
04/17/1984
RPI 704
Concessão da patente
#16.1
01/31/1984
RPI 693
Notificação para pagamento de retribuição
#13.1
11/08/1983
RPI 681
Deferimento
#9.1
07/12/1983
RPI 664
Exigência - art. 36 da LPI
#6.1
07/27/1982
RPI 614
Solicitação de exame técnico
#4.1
01/26/1982
RPI 588
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