Concessão da patente
#16.1
06/28/1983
RPI 662
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: 06/28/1983. We update with every new RPI gazette, published weekly.
Applicants
Allegheny Ludlum Industries INC
Inventors
B. J. (pessoa física)
B. H. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1983
RPI 662
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05/17/1983
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01/11/1983
RPI 638
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12/07/1982
RPI 633
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#21.1
11/30/1993
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