Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8306399Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Inventors
R. S. (pessoa física)
US
IPC Classification
Priority claims
US
442,474 · 11/17/1982
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