Concessão da patente
#16.1
02/22/1983
RPI 644
The patent was granted on 02/22/1983 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: 02/22/1983. We update with every new RPI gazette, published weekly.
Applicants
PETROLEUM RES & DEV CORP
Inventors
M. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/22/1983
RPI 644
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12/07/1982
RPI 633
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07/20/1982
RPI 613
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04/06/1982
RPI 598
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01/21/1992
RPI 1103
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