Concessão da patente
#16.1
08/30/1988
RPI 932
Application data
Number
PI8302816Type
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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
Halliburton Company
US
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Priority claims
US
383,680 · 06/01/1982
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