Solicitação de exame técnico
#4.1
06/06/1989
RPI 972
Application data
Number
PI8603529Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 06/06/1989. We update with every new RPI gazette, published weekly.
Applicants
D. A. (pessoa física)
DE
Degussa - Hüls Aktiengesellschaft
DE
Inventors
E. H. (pessoa física)
DE
M. G. (pessoa física)
US
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