Solicitação de exame técnico
#4.1
07/04/1989
RPI 976
Application data
Number
PI8802593Type
Filing
Publication
The letters patent expired on 09/02/2008: 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
E. C. (pessoa física)
US
Inventors
E. C. (pessoa física)
US
IPC Classification
Priority claims
US
054,808 · 05/27/1987
US
071,154 · 07/08/1987
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