Concessão da patente
#16.1
12/26/1984
RPI 740
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Official data from INPI
PROCESSO PARA PREPARACAO DE NETILETILE-NODIAMINA
ConcedidaInvention Patent
Progress at the INPI
- Filing02/05/79
- Publication
- Examination09/28/82
- Allowance06/26/84
- Grant12/26/84
- Expired06/21/94
The letters patent expired on 06/21/1994: 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: 12/26/1984. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
AMERICAN CYANAMID CO
Inventors
B. K. (pessoa física)
M. P. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
10/23/1984
RPI 731
Deferimento
#9.1
06/26/1984
RPI 714
14.1
02/14/1984
RPI 695
Exigência - art. 36 da LPI
#6.1
09/06/1983
RPI 672
Solicitação de exame técnico
#4.1
09/28/1982
RPI 623
Deferimento
#9.1
06/01/1982
RPI 606
Carta-patente expirada
#21.1
06/21/1994
RPI 1229
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