Concessão da patente
#16.1
10/25/1988
RPI 940
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Official data from INPI
COMPOSIÇÕES DE REVESTIMENTO PARA INIBIR A FIXAÇÃO E CRESCIMENTO DE ORGANISMOS INCRUSTANTES
ConcedidaInvention Patent
Progress at the INPI
- Filing01/17/79
- Publication
- Examination01/05/82
- Allowance05/17/88
- Grant10/25/88
- Expired05/31/94
The letters patent expired on 05/31/1994: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
M & T Chemicals Inc.
US
Inventors
C. B. (pessoa física)
US
L. H. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
09/06/1988
RPI 933
Deferimento
#9.1
05/17/1988
RPI 917
Exigência - art. 36 da LPI
#6.1
10/06/1987
RPI 885
Conhecimento de parecer técnico
#7.1
01/24/1984
RPI 692
Solicitação de exame técnico
#4.1
01/05/1982
RPI 585
Carta-patente expirada
#21.1
05/31/1994
RPI 1226
20.4
03/08/1994
RPI 1214
20.4
11/19/1991
RPI 1094
Pedido de licença compulsória
#20.1
11/12/1991
RPI 1093
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