Concessão da patente
#16.1
06/30/1987
RPI 871
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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
Portals Limited
GB
Inventors
A. T. (pessoa física)
GB
IPC Classification
Priority claims
GB
81 05278 · 02/19/1981
GB
81 21563 · 07/13/1981
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