Concessão da patente
#16.1
10/25/1988
RPI 940
Application data
Number
PI8203009Type
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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
G. B. (pessoa física)
US
Z. D. (pessoa física)
US
IPC Classification
Priority claims
US
267182 · 05/26/1981
US
267197 · 05/26/1981
US
267201 · 05/26/1981
US
267202 · 05/26/1981
US
322486 · 11/18/1981
US
324357 · 11/24/1981
US
324359 · 11/24/1981
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