Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8306312Type
Filing
Publication
The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Oil Company
US
Inventors
C. T. (pessoa física)
US
D. S. (pessoa física)
US
W. D. (pessoa física)
US
IPC Classification
Priority claims
US
443.513 · 11/22/1982
US
443.763 · 11/22/1982
US
443.764 · 11/22/1982
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