Conhecimento de parecer técnico
#7.1
07/04/1989
RPI 976
Application data
Number
PI8405974Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
International Minerals & Chemical Corporation
US
Inventors
D. L. (pessoa física)
DE
IPC Classification
Priority claims
DE
P 33 42 890.5 · 11/26/1983
DE
P 34 11 731.8 · 03/30/1984
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