Pedido de licença compulsória
#20.1
04/12/1988
RPI 912
The letters patent expired on 11/30/1993: 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: 04/12/1988. We update with every new RPI gazette, published weekly.
Applicants
PHILADELPHIA SUBURBAN CORP
Inventors
C. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
04/12/1988
RPI 912
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08/28/1984
RPI 723
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04/24/1984
RPI 705
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01/03/1984
RPI 689
#6.1
05/11/1982
RPI 603
12/15/1981
RPI 582
#21.1
11/30/1993
RPI 1200
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Same category
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