Cessão de direito de exploração
#22.1
12/10/1985
RPI 790
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Official data from INPI
TRANSDUTOR ELETROMECÂNICO DE EFEITO PIEZOELÉTRICO DE ALTAS FREQUÊNCIAS.
Em AnáliseInvention Patent
Progress at the INPI
- Filing11/05/80
- Publication
- Examination
- Allowance11/16/83
- Grant04/24/84
- Expired12/26/95
The letters patent expired on 12/26/1995: 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: 12/10/1985. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
F. C. (pessoa física)
SP, BR
Inventors
D. F. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
04/24/1984
RPI 705
Deferimento
#9.1
11/16/1983
RPI 682
Republicação - classificação IPC
#15.11
06/07/1983
RPI 659
Exigência - art. 36 da LPI
#6.1
05/31/1983
RPI 658
Carta-patente expirada
#21.1
12/26/1995
RPI 1308
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