Concessão da patente
#16.1
05/28/1985
RPI 762
The letters patent expired on 04/04/1995: 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: 05/28/1985. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
L. K. (pessoa física)
S. T. (pessoa física)
US
T. P. (pessoa física)
US
IPC Classification
Priority claims
US
905,813 · 05/15/1978
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