Concessão da patente
#16.1
12/31/1985
RPI 793
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Official data from INPI
PROCESSO DE APRO VEITAMENTO DOS GASES RESIDUAIS DA SINTERIZACAO DE LODO DE ESGOTO NA SECAGEM DESTE
ConcedidaInvention Patent
Progress at the INPI
- Filing08/29/79
- Publication
- Examination04/13/82
- Allowance01/29/85
- Grant12/31/85
- Expired04/25/95
The letters patent expired on 04/25/1995: 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: 12/31/1985. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
I. T. (pessoa física)
Inventors
H. S. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
05/21/1985
RPI 761
Deferimento
#9.1
01/29/1985
RPI 745
Exigência - art. 36 da LPI
#6.1
06/26/1984
RPI 714
Conhecimento de parecer técnico
#7.1
02/22/1983
RPI 644
Solicitação de exame técnico
#4.1
04/13/1982
RPI 599
Carta-patente expirada
#21.1
04/25/1995
RPI 1273
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