Solicitação de exame técnico
#4.1
05/27/1986
RPI 814
Application data
Number
PI8303869Type
Filing
Publication
The patent was granted on 08/27/1991 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: 05/27/1986. We update with every new RPI gazette, published weekly.
Applicants
Phillips Petroleum Company
US
Inventors
D. B. (pessoa física)
US
IPC Classification
Priority claims
US
400.188 · 07/20/1982
US
490.110 · 05/10/1983
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