Concessão da patente
#16.1
07/14/1981
RPI 560
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Application data
Number
PI7504067Type
Invention Patent
Filing
06/27/1975
Publication
06/29/1976
Progress at the INPI
- Filing06/27/75
- Publication06/29/76
- Examination
- Allowance10/14/80
- Grant07/14/81
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 07/14/1981. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
B. A. (pessoa física)
DE
Inventors
H. K. (pessoa física)
DE
H. T. (pessoa física)
DE
K. B. (pessoa física)
DE
W. B. (pessoa física)
DE
W. K. (pessoa física)
DE
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Deferimento
#9.1
10/14/1980
RPI 521
Publicação do pedido de patente
#3.1
06/29/1976
RPI 297
Carta-patente expirada
#21.1
Patente extinta em 27/06/90
07/01/2008
RPI 1956
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