Conhecimento de parecer técnico
#7.1
05/09/1989
RPI 968
Application data
Number
PI8303867Type
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: 05/09/1989. We update with every new RPI gazette, published weekly.
Applicants
The Lamson & Sessions Co.
US
Inventors
C. D. (pessoa física)
US
G. S. (pessoa física)
US
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