20.4
10/06/1987
RPI 885
Progress at the INPI
- Filing12/23/80
- Publication
- Examination12/21/82
- Allowance01/02/85
- Grant10/01/85
- Expired12/07/93
The letters patent expired on 12/07/1993: 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: 10/06/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
No applicants.
Inventors
E. B. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
10/01/1985
RPI 780
15.20
06/11/1985
RPI 764
15.20
05/14/1985
RPI 760
Notificação para pagamento de retribuição
#13.1
04/23/1985
RPI 757
15.10
02/26/1985
RPI 749
Deferimento
#9.1
01/02/1985
RPI 741
Exigência - art. 36 da LPI
#6.1
04/24/1984
RPI 705
Conhecimento de parecer técnico
#7.1
08/16/1983
RPI 669
Solicitação de exame técnico
#4.1
12/21/1982
RPI 635
Carta-patente expirada
#21.1
12/07/1993
RPI 1201
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