Solicitação de exame técnico
#4.1
03/21/1989
RPI 961
Application data
Number
PI8707369Type
Filing
Publication
PCT
US1987001436 The patent was granted on 06/30/1992 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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Sonex Research Inc
US
Inventors
A. P. (pessoa física)
US
D. F. (pessoa física)
US
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