Concessão da patente
#16.1
04/29/1986
RPI 810
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Official data from INPI
Método de fazer um transtudor eletro- acústico e transtudor eletro- acústico .
ConcedidaInvention Patent
Application data
Number
PI8205398Type
Invention Patent
Filing
09/15/1982
Publication
08/23/1983
Progress at the INPI
- Filing09/15/82
- Publication08/23/83
- Examination12/06/83
- Allowance09/10/85
- Grant04/29/86
- Terminated02/11/92
The patent was granted on 04/29/1986 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: 04/29/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Besson LImited
GB
Inventors
D. C. (pessoa física)
GB
D. S. (pessoa física)
GB
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
01/14/1986
RPI 795
Deferimento
#9.1
09/10/1985
RPI 777
Exigência - art. 36 da LPI
#6.1
01/15/1985
RPI 743
Solicitação de exame técnico
#4.1
12/06/1983
RPI 685
Publicação do pedido de patente
#3.1
08/23/1983
RPI 670
Pedido de patente depositado
#2.1
11/03/1982
RPI 628
Anuidade - prazo legal encerrado
#18.2
02/11/1992
RPI 1106
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