Solicitação de exame técnico
#4.1
02/02/1988
RPI 902
Application data
Number
PI8501634Type
Filing
Publication
The patent was granted on 05/28/1991 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: 02/02/1988. We update with every new RPI gazette, published weekly.
Applicants
Exxon Research And Engineering Company
US
Inventors
F. B. (pessoa física)
US
I. G. (pessoa física)
US
J. F. (pessoa física)
US
N. N. (pessoa física)
US
R. K. (pessoa física)
US
W. D. (pessoa física)
DE
IPC Classification
Priority claims
US
597.187 · 04/05/1984
US
597.188 · 04/05/1984
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