Concessão da patente
#16.1
08/28/1984
RPI 723
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: 08/28/1984. We update with every new RPI gazette, published weekly.
Applicants
American Cast Iron Pipe Company
US
Inventors
E. P. (pessoa física)
W. S. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/28/1984
RPI 723
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06/05/1984
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02/14/1984
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11/08/1983
RPI 681
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11/30/1993
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